This manual has been compiled as a complete resource for a technician working on Combitherm Gas models. It includes
necessary product information and drawings, along with helpful troubleshooting procedures.
Introduction gives a quick overview of the Combitherm Gas line to aid in model identification.
Sections 1 through 5 contain information applying to Combitherm Gas models:
– CONTROL PANEL IDENTIFICATION includes information on using the controllers and operating instructions. It is
the same material supplied to the customer.
– PREVENTIVE MAINTENANCE includes procedures for cleaning. This information is also supplied to the customer.
– SERVICE MODE AND ERROR CODES explains the special programming available to you as a technician to view
status, make adjustments and test functions on models equipped with Standard and Deluxe Controllers. Information is
also included on the use of displayed error codes to resolve problems and on the functions that can be operated under
fault conditions.
– TROUBLESHOOTING TREES are provided for the most common conditions you will be required to address.
– COMBITHERM PARTS has drawings and lists of available parts that apply to the electric models.
Section 6 contains Wiring Diagrams that are specific to each model.
Printing
From this CD, you may print the Current Page or any range of pages. If you would like to print out a complete manual
for a specific model, print pages 1 – 102 (Sections 1 – 5) along with the pages in that model’s section (7.14 ESG, for
example). Here’s a tip: Because printers vary in their capacity to handle large drawings, make a test print of one of the
Wiring Diagrams before printing the model’s section.
C O MB I T H E RM GA S T EC H nI CA l SE R vI C E MA nu Al
Page 3
TABLE OF CONTENTS
How to Use this Technical Service Manual ..................................... 2
Return to Main Table of Contents ..................................................3
S ECTION 1 – CONTROL PANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 5
1
CONTROL PANEL IDENTIFICATION
Page 6
S ECTION 1 – CONTROL PANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 6
POWER ON/OFF KEY
STEAM MODE KEY
PROGRAMMED MENU KEY
COOKING TEMPERATURE KEY
DOWN ARROW KEY
MOISTURE VENT KEY
START/STOP KEY
CHEF FUNCTION KEY
TIME KEY
COMBINATION MODE KEY
RETHERM MODE KEY
CONVECTION MODE KEY
PROGRAM INSTALL/EDIT KEY
FUNCTION & OPERATING
CONTROL PANEL DISPLAY
CORE TEMPERATURE KEY
UP ARROW KEY
RAPID-TOUCH KEYS
INDICATORS
DELUXE MODELS ONLY
DELUXE MODELS ONLY
DELUXE MODELS ONLY
ELECTRIC MODELS ONLY
CONTROL PANEL IDENTIFICATION
STANDARD
AND PROGRAMMABLE DELUXE MODELS
ADJUSTMENT KNOB
Page 7
S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 7
STANDARD & DELUXE CONTROL PANEL BASIC FUNCTION
POWER ON/OFF KEY
Activates power to the oven.
STEAM MODE KEY
The oven will operate in the steam mode at a
temperature range of 86°F to 248°F
(30°C to 120°C).
• Automatic steaming at 212°F (100°C)
FACTORY-SET DEFAULT.
• Quick steaming between 213°F and 248°F
(101°C and 120°C).
• Low Temperature Steaming between
86°F and 211°F (30°C and 99°C).
START/STOP KEY
Initiates all cooking mode functions and
programmed procedures stored in memory.
Stops an activated cooking mode or
programmed procedure currently in progress,
and exits the Chef function key .
COMBINATION MODE KEY
Selection key for cooking with a combination
of steam and convection heat that can be set
within a temperature range of 212°F to 482°F
(100°C to 250°C).
PROGRAMMED MENU KEY
Used to access and exit a menu list of all
stored cooking programs that can be reviewed
in display .
DELUXE MODELS ONLY
CHEF FUNCTION KEY
Used to select programmed menu functions,
various auxiliary functions, and several chef
help instructions.
COOKING TEMPERATURE KEY
Used to set the required cooking temperature,
to recall the set cooking temperature, or to
check the actual oven temperature in
conjunction with the down arrow key , the
up arrow key or the adjustment knob .
TIME KEY
Used to set the required cooking time or recall
the set cooking time in conjunction with the
down arrow key , the up arrow key , or
the adjustment knob .
DOWN ARROW KEY
Used to decrease displayed cook temperature
, time , or core temperature and as a
scrolling key for programming functions.
ADJUSTMENT KNOB
Displays oven functions. Serves the same
function as the up and down arrow keys to
increase or decrease the displayed cook
temperature , time , or core temperature .
MOISTURE VENT KEY
Immediately vents steam and condensate from the
oven compartment while cooking in the Convection
mode or in the Combination mode .
RETHERM MODE KEY
Food rethermalization or reheating mode will
operate with automatic steam injection at a
temperature range of 248°F to 320°F
(120°C to 160°C).
CONVECTION MODE KEY
Selection key for convection cooking without
steam at a temperature range of 86°F to 482°F
(30°C to 250°C).
PROGRAM INSTALL AND EDIT KEY
Used to create, change, duplicate, and delete
programmed menus.
DELUXE MODELS ONLY.
• • • • • • • CONTROL PANEL DISPLAY
CORE TEMPERATURE KEY
Used to set the required internal product
temperature, to recall the internal product
temperature set by the operator, or to display
the current internal temperature of the product
in conjunction with the down arrow key , the
up arrow key , or the adjustment knob .
One-touch cooking for immediate access to
frequently used operator set programs including
cooking modes, cleaning, and other oven functions.
CONTINUED
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 8
FUNCTION & OPERATING INDICATORS
A.GOLD-N-BROWN FEATURE
This indicator will illuminate when the browning function is set by the operator in a
timed or programmed cooking cycle in either convection mode or combination mode.
B.COMBI SMOKER (ON EQUIPPED MODELS)
This indicator will illuminate when the smoking function is set by the operator in a
timer, probe or programmed cooking cycle in either convection mode or combination
mode.
C.REDUCED FAN SPEED
This indicator will illuminate whenever the operator sets a reduced fan speed to
protect products affected by high-velocity air movement.
D.CONFIRMATION OF OVEN OPERATION
This indicator illuminates whenever the oven is operating in any mode.
E.KEY LOCK
This indicator will illuminate when operator has locked any mode key or function to
prevent unauthorized or accidental changes.
F.MOISTURE VENT
This indicator will illuminate whenever the Moisture Vent Key
is pressed by the operator to eliminate excessive moisture.
G.ENERGY LOCK
FOR USE WITH OVENS INSTALLED UNDER AN ALTO-SHAAM VENTLESS HOOD.
This indicator is a safety feature that will illuminate and prevent the oven from being
operated unless the ventless oven hood is operating.
STANDARD & DELUXE CONTROL PANEL BASIC FUNCTIONS
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 9
SET UP MENU
Following installation, the control should be set with the date and time. In addition to the date and time,
the set-up function provides the operator with the ability to adjust a number of other Combitherm
operating conditions to conform with the needs of the individual installation.
SET-UP PROCEDURES
PRESS THE ON/OFF POWER KEY
TO THE ON POSITION.
PRESS THE CHEF FUNCTION KEY.
Rotate the adjustment knob
until the set up symbol is
highlighted within the display.
PRESS THE CHEF FUNCTION KEY.
Press the up and down arrow keys
or rotate the adjustment knob to select
“YES” for the set up function.
PRESS THE CHEF FUNCTION KEY TO
CONFIRM THE SET UP FUNCTION.
Press the up and down arrow keys
or rotate the adjust
ment knob to
highlight one of the following
adjustment functions:
SET UP ADJUSTMENT CHOICES
SIGNAL TONE
VOLUME
TIME
DATE
PROGRAM INDEX
DEFAULT/MEMO SETTINGS
TEMPERATURE DISPLAY
NETWORK ADDRESS
LANGUAGE
SIGNAL TONE
Rotate the adjustment knob until the signal tone symbol is highlighted within the display.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE SIGNAL TONE SELECTION.
Press the up and down arrow keys or rotate the adjustment knob to select each tone offered.
Stop rotation at each individual setting to hear an audio playback. Select the tone desired.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE SELECTED SIGNAL TONE SETTING.
Set up
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 10
ALWAYS BEGIN SET UP ADJUSTMENTS FROM THE SET UP MENU .
VOLUME
Rotate the adjustment knob until the volume symbol is highlighted within the display.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE VOLUME SELECTION.
Press the up and down arrow keys or rotate the adjustment knob to select each volume level
offered. Stop rotation at each individual setting to hear an audio playback. Select the volume
desired with consideration of the noise level within the kitchen during peak production periods.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE VOLUME SETTING.
TIME
Rotate the adjustment knob until the time symbol is highlighted within the display.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE TIME SELECTION.
Press the up and down arrow keys to alternate between hours and minutes and rotate the
adjustment knob in each to adjust the numbers to the correct time.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE SET TIME.
DATE
Rotate the adjustment knob until the date symbol is highlighted within the display.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE DATE SELECTION.
Rotate the adjustment knob to select the preferred date format.
Press the up and down arrow keys to alternate between day, month and year, and rotate the
adjustment knob in each to adjust the numbers to the correct settings.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE SET DATE.
PROGRAM INDEX
Rotate the adjustment knob until the program index symbol is highlighted within the display.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE PROGRAM INDEX SELECTION.
Press the up and down arrow keys or rotate the adjustment knob to select the preferred index format:
“YES” for a listing of programs entered alphabetically with the program install/edit key.
“NO” for a listing of programs entered numerically with the program install/edit key.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE PROGRAM INDEX SETTING.
SET-UP PROCEDURES
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 11
SET-UP PROCEDURES
ALWAYS BEGIN SET UP ADJUSTMENTS FROM THE SET UP MENU .
DEFAULT/MEMO SETTING
Rotate the adjustment knob until the default/memo symbol is highlighted within the display.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE DEFAULT/MEMO SELECTION.
Rotate the adjustment knob to “NO” for memo. This setting will display the last operator set values for
time and temperature in each cooking mode.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE MEMO SETTING.
TO CHANGE THE DEFAULT SETTINGS
Rotate the adjustment knob to select “YES”.
A numbered list of default descriptions will appear in the display. Rotate the adjustment knob
until the setting to be changed is highlighted. Press the up arrow key to highlight the time or
temper
ature to be changed. Rotate the adjustment knob to change the default to the setting
desired. Press the down arrow key to save the new default setting.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE NEW DEFAULT SETTINGS.
COOKING
MODE
OVEN
TEMPERATURE
CORE
TEMPERATURE
COOKING
TIME
COMBITHERM FACTORY SET DEFAULT SETTINGS
DELTA-T122°F172°F
FREE
MODE(50°C)(77°C)
RETHERM275°F158°F
5 MINUTES
MODE(135°C)(70°C)
PREHEAT374°F
FREE—
MODE(140°C)
CONVECTION338°F158°F
30 MINUTES
MODE(170°C)(70°C)
COMBINATION302°F158°F
70 MINUTES
STEAM MODE(150°C)(70°C)
STEAM212°F158°F
25 MINUTES
MODE(100°C)(70°C)
The default/memo setting allows the operator to choose
between a display showing the factory set defaults for
time and temperature or the last operator set values for
time and temperature in each cooking mode. This
adjustment function also allows the operator to change
the defaults from those set at the factory to settings that
better meet the needs of the individual operation.
Cooking product with operator set defaults for time and
temperature can help reduce operator error. Cooking
with the oven in the memo setting is particularly useful
when several batches are cooked in succession. The
memo setting eliminates the necessity to set time and
temperature for each batch.
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 12
ALWAYS BEGIN SET UP ADJUSTMENTS FROM THE SET UP MENU .
TEMPERATURE DISPLAY
Rotate the adjustment knob until the temperature display symbol is highlighted within the display.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE TEMPERATURE DISPLAY SELECTION.
Press the up and down arrow keys or rotate the
adjustment knob to select either Fahrenheit or Celsius.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE TEMPERATURE DISPLAY SETTING.
NETWORK ADDRESS
Press the up and down arrow keys or rotate the adjustment knob until the network address
symbol is highlighted within the display.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE NETWORK ADDRESS SELECTION.
The current network address will appear in the display.
Rotate the adjustment knob to select 1 through 99 and assign
a different network number for each PC to be connected.
PRESS THE CHEF FUNCTION KEY TO CONFIRM EACH NETWORK ADDRESS.
LANGUAGE
Press the up and down arrow keys or rotate the adjustment knob
until the language symbol is highlighted within the display.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE LANGUAGE PROGRAM SELECTION.
Rotate the adjustment knob to select the required language.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE LANGUAGE SETTING.
CHINESE
DUTCH
ENGLISH*
FRENCH
GERMAN
ITALIAN
JAPANESE
KOREAN
POLISH
PORTUGUESE
RUSSIAN
SPANISH
SWEDISH
*U.S. FACTORY SETTING
NOTE
: SOME OF THE LANGUAGE SELECTIONS SHOWN ABOVE MAY NOT BE AVAILABLE ON ALL MODELS.
SET-UP PROCEDURES
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 13
DO NOT USE THE ATTACHED HAND-
HELD HOSE TO SPRAY ANYTHING OTHER
THAN THE INTERIOR OF THE COMBITHERM
OVEN COMPARTMENT.
DO NOT USE THE SPRAY HOSE
ON THE SURFACE OF A HOT COOKING
COMPARTMENT. ALLOW THE OVEN TO
COOL TO A MINIMUM OF 150°F (66°C).
NOTE: USE AUTHORIZED COMBITHERM OVEN CLEANER ONLY.
UNAUTHORIZED CLEANING AGENTS MAY DISCOLOR OR HARM INTERIOR SURFACES OF THE
OVEN. READ AND UNDERSTAND LABEL AND MATERIAL SAFETY DATA SHEET BEFORE USING
THE OVEN CLEANER.
FOR OPERATOR SAFETY
NOTE AND OBSERVE ALL SAFETY PRECAUTIONS LOCATED THROUGHOUT THIS GUIDE.
IMPORTANT SAFETY PRECAUTIONS
NOTE: Automatic steam venting is a standard
safety feature built into all Combitherm
oven models. This feature vents all
steam from the oven compartment
IMMEDIATELY BEFORE COOKING
TIME EXPIRES.
This function is provided in all
programmed and timed production
when operating in any Steam,
Combination, Convection, and Retherm
cooking mode. Automatic steam
venting does not function if the oven
door is opened before time expires or
when the oven has been set to
continuous operation.
HOT STEAM CAUSES BURNS
ROTATE THE DOOR HANDLE TO THE
FIRST OPEN ROTATION POSITION ONLY.
WAIT UNTIL THE STEAM IS VENTED BEFORE
FULLY OPENING THE DOOR.
DO NOT
HANDLE PANS CONTAINING LIQUID
OR SEMILIQUID PRODUCTS POSITIONED
ABOVE THE EYE LEVEL OF THE OPERATOR.
SUCH PRODUCTS CAN SCALD AND CAUSE
SERIOUS INJURY.
AT NO TIME SHOULD THE INTERIOR OR
EXTERIOR BE STEAM CLEANED, HOSED
DOWN, OR FLOODED WITH WATER OR
LIQUID SOLUTION OF ANY KIND. DO NOT
USE WATER JET TO CLEAN.
SEVERE DAMAGE OR
ELECTRICAL HAZARD COULD RESULT.
WARRANTY BECOMES VOID IF APPLIANCE IS FLOODED.
METAL PARTS OF THIS EQUIPMENT
BECOME EXTREMELY HOT WHEN IN
OPERATION. TO AVOID BURNS,
ALWAYS USE HAND PROTECTION
WHEN OPERATING THIS APPLIANCE.
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 14
The Steam mode provides the operator with the ability to steam, poach, or blanch.
This mode will automatically steam at the boiling point of water; quick-steam above the
boiling point for faster cooking results; or low temperature steam, below the boiling point,
for more delicate products such as pâté, mousse, seafood, or custard.
PRESS THE ON/OFF POWER KEY TO THE ON POSITION.
PRESS THE STEAM MODE KEY.
Automatic Steam temperature of 212°F (100°C) will appear in the display.
The last set time or oven control default setting for time will appear in the display.
PRESS THE START KEY TO STEAM AT THE SETTINGS SHOWN.
TO CHANGE THE SETTINGS SHOWN:
PRESS THE TEMPERATURE KEY.
The cooking temperature will appear highlighted within the oven display.
Press the up and down arrow keys or rotate the adjustment knob to select
the desired cooking temperature.
• Automatic Steaming 212°F (100°C)
• Quick-steaming 213°F to 248°F (101°C to 120°C)
• Low Temperature Steaming 86°F to 211°F (30°C to 99°C)
TO COOK BY TIME:
PRESS THE TIME KEY.
The cooking time will appear highlighted within the oven display.
Press the up and down arrow keys or rotate the adjustment knob to
select the time desired…
or
Set control for continuous operation by rotating the adjustment knob to the right until
appears in the display.
TO COOK BY INTERNAL PRODUCT TEMPERATURE:
PRESS THE CORE TEMP KEY.
The previously set core temperature or oven control default setting will appear
highlighted within the oven display.
Press the up and down arrow keys or rotate the adjustment knob to
select the internal temperature desired and insert the product probe.
PRESS THE START KEY TO BEGIN COOKING IN THE STEAM MODE.
• The set cooking temperature will appear in the display. To adjust the set temperature, press the key
once and make corrections as required. To display the actual oven temperature, press the key twice.
• The remaining cooking time will appear in the display. To display the set time or to change the set
values for time during operation, press the time key once and make corrections as required.
• The actual internal product temperature will appear in the display. To display the set internal product
temperature or to change the set values for core temperature during operation, press the key once
and make corrections as required.
When the cooking time has expired or the operator set internal temperature has been reached, a buzzer
will sound indicating the end of the operating mode.
• To stop the buzzer, press the start/stop key or open the oven door.
STEAM MODE
STEAM G LOW TEMPERATURE STEAM G QUICK STEAM
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 15
This mode will steam a full or partial load of a single product, or multiple products
without transfer of flavors. When steaming multiple products, however, individual
product cooking times must be taken into consideration. The non-pressurized
atmosphere of the Combitherm also provides the ability to open the door during the
steam mode in order to monitor products more closely throughout the steaming process.
STEAM
Perforated, 2-1/2" deep pans
(65mm) are particularly suitable
for use in this program mode.
These pans will provide a shorter
cooking time and will prevent
product over-cooking at the
bottom of the pan.
Separate ice-encased vegetables
before steaming to assure more
even cooking.
A variety of products can be
steamed at the same time but
attention must be paid to the
different cooking times required
for each food product.
Butter and season vegetables
after steaming.
Steam long-grain rice using
approximately 1-part rice to
approximately 1-1/2-parts water
or seasoned liquid.
Steam durum wheat noodles in
unperforated pans using 1-part
noodles to 5-parts cold water.
QUICK STEAMING
Quick steaming is suitable
for hearty, root-type vegetables
such as potatoes, legumes,
and cabbage.
Quick steaming provides a
cooking time which is
approximately 10-percent shorter
than the regular steam mode
temperature of 212°F (100°C).
Set the steam cooking
temperature between 221°F
(105°C) and 230°F (110°C) for
small loads and between 230°F
(110°C) and 248°F (120°C) for
full loads.
LOW TEMP STEAM
The low temperature steam mode
will function whenever the oven
compartment temperature is
below 212°F (100°C).
Proof yeast dough at a
temperature setting of 90°F to
110°F (32°C to 43°C).
It will take longer to steam
products using the low
temperature steam mode.
Steaming sausages in low
temperature steam prevents
cracked or peeling skins.
Use low temperature steam for
delicate foods such as shrimp,
fish, seafood, and crème caramel.
For best results, low temperature
steam all delicate food items at a
temperature of 210°F (99°C)
or below.
STEAM MODE
CHEF OPERATING TIPS
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 16
The Combination mode will prove to be the most versatile and widely used mode
the Combitherm oven has to offer. It will produce the best possible results on the
widest variety of products — all within the shortest period of time. The unique control
function of this mode enables the operator to roast or bake with a combination of
steam and convection heat. In addition to shorter cooking times, this combination of
steam and heat offers less product shrinkage and more moisture retention than obtained
in a standard convection oven.
PRESS THE ON/OFF POWER KEY TO THE ON POSITION.
PRESS THE COMBINATION MODE KEY.
The last set values or oven control default setting for temperature will appear in the display.
The last set time or oven control default setting for time will appear in the display.
PRESS THE START KEY TO COOK AT THE SETTINGS SHOWN.
TO CHANGE THE SETTINGS SHOWN:
PRESS THE TEMPERATURE KEY.
The cooking temperature will appear highlighted within the oven display.
Press the up and down arrow keys or rotate the adjustment knob to
select the desired cooking temperature.
• 212°F to 482°F (100°C to 250°C)
TO COOK BY TIME:
PRESS THE TIME KEY.
The cooking time will appear highlighted within the oven display.
Press the up and down arrow keys or rotate the adjustment knob to select
the time desired…
or
Set control for continuous operation by rotating the adjustment knob to the right until
appears in the display.
TO COOK BY INTERNAL PRODUCT TEMPERATURE:
PRESS THE CORE TEMP KEY.
The core temperature will appear highlighted within the oven display.
Press the up and down arrow keys or rotate the adjustment knob to
select the internal temperature desired and insert the product probe.
PRESS THE START KEY TO BEGIN COOKING IN THE COMBINATION MODE.
• The set cooking temperature will appear in the display. T
o adjust the set temperature, press the key
once and make corrections as required. To display the actual oven temperature, press the key twice.
• The remaining cooking time will appear in the display. To display the set time or to change the set
values for time during operation, press the time key once and make corrections as required.
• The actual internal product temperature will appear in the display. To display the set internal
product temperature or to change the set values for core temperature during operation, press the
key once and make corrections as required.
When the cooking time has expired or the operator set internal temperature has been reached, a
buzzer will sound indicating the end of the operating mode.
• To stop the buzzer, press the start/stop key or open the oven door.
COMBINATION MODE
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 17
Due to the automatic steam adjustment, the
door can be opened at any time during a
cooking operation. Be certain to observe the
safety warning when opening the oven door.
The Combination mode is particularly efficient
when used for baking, broiling, grilling, stewing,
braising, and roasting.
When using the Combination mode, cooking
temperatures can be reduced 10- to 20-percent
below the temperatures used for conventional
cooking methods.
Cooking time will be reduced approximately
40-percent when cooking at the same temperature
used for convection oven cooking and up to 50- to
60-percent less time when cooking at the same
temperature used for a conventional oven.
Food browning in the Combitherm begins
at a cooking temperature of approximately
248°F (120°C).
A higher cooking temperature results in heavier
browning but also results in greater product
weight loss. To achieve additional browning use
the Moisture Vent Key or set Gold-n-Brown into
the product procedure. Gold-n-Brown is
particularly useful for adding color to high moisture
products such as chicken and other poultry items
or for additional browning of full loads and other
moist products.
The Combination mode provides even browning
without the necessity to turn the pans.
For more even cooking, do not cook in pans
deeper than 4-inches (100mm).
The Combination mode injects the optimum amount of steam
automatically. There is no need to select moisture levels. Foods do not
dry out. Flavors are retained with no transfer of flavors when mixing
product loads.
COMBINATION MODE
CHEF OPERATING TIPS
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The Convection mode operates with hot circulated air within a temperature range
of 86° to 482°F (30° to 250°C). For many applications, better results may be
achieved with the Combination mode; therefore, the operator may want to consider
using the Convection mode on a more limited basis.
PRESS THE ON/OFF POWER KEY TO THE ON POSITION.
PRESS THE CONVECTION MODE KEY.
The last set values or oven control default setting for temperature will appear in the display.
The last set time or oven control default setting for time will appear in the display.
PRESS THE START KEY TO COOK AT THE SETTINGS SHOWN.
TO CHANGE THE SETTINGS SHOWN:
PRESS THE TEMPERATURE KEY.
The cooking temperature will appear highlighted within the oven display.
Press the up and down arrow keys or rotate the adjustment knob
to select the desired cooking temperature.
• 86° to 482°F (30° to 250°C)
TO COOK BY TIME:
PRESS THE TIME KEY.
The cooking time will appear highlighted within the oven display.
Press the up and down arrow keys or rotate the adjustment knob to select the
time desired…
or
Set control for continuous operation by rotating the adjustment knob to the right until
appears in the display.
TO COOK BY INTERNAL PRODUCT TEMPERATURE:
PRESS THE CORE TEMP KEY.
The core temperature will appear highlighted within the oven display.
Press the up and down arrow keys or rotate the adjustment knob to
select the internal temperature desired and insert the product probe.
PRESS THE START KEY TO BEGIN THE COOKING MODE.
• The set cooking temperature will appear in the display. To adjust the set temperature, press the
key
once and make corrections as required. To display the actual oven temperature, press the key twice.
• The remaining cooking time will appear in the display. To display the set time or to change the set
values for time during operation, press the time key once and make corrections as required.
• The actual internal product temperature will appear in the display. To display the set internal product
temperature or to change the set values for core temperature during operation, press the key once
and make corrections as required.
When the cooking time has expired or the operator set internal temperature has been reached, a buzzer
will sound indicating the end of the operating mode.
• To stop the buzzer, press the start/stop key or open the oven door.
To check the length of time the product has been operating in the core temperature mode, press and hold the
time key along with the core temperature key . The time period will appear at the top of the display.
CONVECTION MODE
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The Convection mode works best with foods
containing little moisture or for very moist food
which require a dryer finished product.
For baking, preheat the Combitherm at a
temperature of 36°F to 54°F (20°C to 30°C) above
the baking temperature required. Once preheated,
reset the temperature as required.
A higher cooking temperature results in heavier
browning but also results in greater product weight
loss. To achieve additional browning use the
Moisture Vent Key or set the Browning Feature
into the product procedure.
To prevent the surface of food from excessive
drying, the fan will not engage if the internal
oven temperature is above 212°F (100°C)
and the set oven temperature is below
212°F (100°C).
The Convection Mode can be used to roast or bake products needing very
short cooking times or for high moisture products such as muffins, cakes,
and cookies, or for browning the surface of the product.
CONVECTION MODE
CHEF OPERATING TIPS
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 20
The Retherm mode can be used to rethermalize (regenerate) portioned food on
plates, trays, or platters within a short period of time. Steam is automatically injected
into the oven compartment as required. Items are brought up to proper serving
temperatures without dry edges or condensate forming on the plates.
PRESS THE ON/OFF POWER KEY TO THE ON POSITION.
PRESS THE RETHERM MODE KEY.
The last set values or the default settings will appear in the display.
PRESS THE START KEY TO COOK AT THE SETTINGS SHOWN.
TO CHANGE THE SETTINGS SHOWN:
PRESS THE TEMPERATURE KEY.
The cooking temperature will appear highlighted within the oven display.
Press the up and down arrow keys or rotate the adjustment knob
to select the desired cooking temperature.
• 248° to 320°F (120° to 180°C)
TO COOK BY TIME:
PRESS THE TIME KEY.
The cooking time will appear highlighted within the oven display.
Press the up and down arrow keys or rotate the adjustment knob to select the
time desired…
or
Set control for continuous operation by rotating the adjustment knob to the
right untilappears in the display.
TO COOK BY INTERNAL PRODUCT TEMPERATURE:
PRESS THE CORE TEMP KEY.
The core temperature will appear highlighted within the oven display.
Press the up and down arrow keys or rotate the adjustment knob to
select the internal temperature desired and insert the product probe.
PRESS THE START KEY TO BEGIN THE RETHERM MODE.
• The set cooking temperature will appear in the display. To adjust the set temperature, press the key
once and make corrections as required. To display the actual oven temperature, press the key twice.
• The remaining cooking time will appear in the display. To display the set time or to change the set
values for time during operation, press the time key once and make corrections as required.
• The actual internal product temperature will appear in the display. To display the set internal product
temperature or to change the set values for core temperature during operation, press the key once
and make corrections as required.
When the cooking time has expired or the operator set internal temperature has been reached, a buzzer
will sound indicating the end of the operating mode.
• To stop the buzzer, press the start/stop key or open the oven door.
To check the length of time the product has been operating in the core temperature mode, press and hold the
time key along with the core temperature key . The time period will appear at the top of the display.
RETHERM MODE
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 21
Since plated meals consist of dissimilar products, there are several important factors
to consider in order to produce the finest results. Product density (compactness),
thickness, quantity of product on each plate, and quantity of plates all relate to the
length of time necessary to reheat. Again, experience is the best method to
determine reheating time. Once the time has been determined and recorded for a
specific meal, the results will be consistent for future reheating times.
HELPFUL HINTS FOR REHEATING ON THE PLATE
•
ALL FOOD COMPONENTS ON THE PLATE SHOULD BE OF SIMILAR DENSITIES.
•
ALL FOOD COMPONENTS ON THE PLATE SHOULD BE SIMILAR IN THICKNESS.
•
ARRANGE ALL FOOD COMPONENTS EVENLY ON THE PLATE.
•
AVOID EXCESSIVE OVERLAPPING OF PRODUCT.
•
SAUCES MUST BE HEATED AND ADDED TO PRODUCT AFTER REHEATING.
•
A MIXED VARIETY OF MEALS CAN BE REHEATED AT THE SAME TIME.
• À LA CARTE RETHERMALIZATION
À la carte rethermalization is designed to take
a single plate from a refrigerated temperature to
serving temperature for immediate service. Plates
are prepared in advance, covered, and refrigerated.
Preheat the Combither
m oven. Remove plate from
refrigeration and place in the oven at 275°F (135°C)
for an uncovered plate or 300°F (150°C) for a
covered plate. Plates with meat components will
take more time than plates containing all vegetable
components. Follow internal temperature
requirements for reheating and allow for override
time. After reheating, remove the plate from the
oven, add any sauces, garnish, and serve. This
process can be repeated as required.
For the most efficient continuous service, it is
suggested that the Combitherm oven be dedicated to
the rethermalization process during serving hours.
• BANQUET RETHERMALIZATION
Banquet rethermalization is designed for high
volume, full or partial load (multiple plate) reheating.
For maximum efficiency, it is essential that volume
rether
malization be used in conjunction with the
utilization of holding cabinets to keep rethermalized
food at proper temperatures.
Plates are assembled in advance, covered, and
refrigerated or loaded on the roll-in cart and
refrigerated. Preheat the Combitherm oven at
275°F (135°C) for uncovered plates or 300°F (150°C)
for covered plates. Remove plates or the roll-in cart
from refrigeration, load in the oven and set timer as
required. Follow internal temperature requirements
for reheating and allow for override time. Remove
the plates or roll-in cart from the Combitherm and
roll into the companion holding cabinet. Relocate
the holding cabinet to the banquet service area.
• RETHERMALIZING PREFABRICATED AND
VACUUM-PACKED FROZEN FOODS
For bulk product rethermalization, completely
defrost product bags in walk-in cooler. DO NOT
REMOVE PRODUCT FROM THE BAG. Load
thawed bags in preheated oven and rethermalize in
the Low Temperature Steam mode until the required
internal temperature is reached. Place rether
malized
bags in a preheated holding cabinet set at
140° to 165°F (60° to 74°C) until ready for service.
For large volume on-the-plate regeneration,
defrost bags in walk-in cooler. Open bags and plate
per menu requirements in a (
MAXIMUM) 55°F (13°C)
refrigerated room. Cover plates, place on Alto-Shaam
roll-in cart (trolley), and roll into Combitherm oven
preheated at 275°F (135°C).
Regenerate in the Convection mode for 3 to 5
minutes. Switch to the Retherm mode for an
additional 3 minutes or more if required. Transfer
full trolley to a preheated holding cabinet set at
160°F (71°C) until ready for service. In the case of
meat cooked to rare, set the cabinet at 140°F (60°C).
RETHERM MODE CHEF OPERATING TIPS
PLATE COVERS MUST BE USED FOR ON-THE-PLATE REGENERATION.
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 22
CORE TEMPERATURE PROBE MODE
As an alternative to timer operation, the Core Temperature Probe mode can
be used in conjunction with any program mode to cook by sensing internal
product temperature. For a more accurate internal temperature, a
specialized Combitherm product probe senses temperature from four strategic
points and displays a temperature average.
PRESS THE ON/OFF POWER KEY TO THE ON POSITION.
INSERT THE PRODUCT PROBE.
The probe must be inserted so that the tip is positioned in the center of the food mass.
For liquid or semiliquid foods, suspend the probe in the center of the product and
secure the probe wire to the container edge.
SELECT AND PRESS THE REQUIRED COOKING PROGRAM.
PRESS THE TEMPERATURE KEY.
The cooking temperature will appear highlighted within the oven display.
Press the up and down arrow keys or rotate the adjustment knob to
select the desired cooking temperature within the temperature range of
the cooking mode selected.
PRESS THE CORE TEMP KEY.
The core temperature will appear highlighted within the oven display.
Press the up and down arrow keys or rotate the adjustment knob to
select the internal product cutoff temperature.
PRESS THE STAR
T KEY TO BEGIN THE COOKING MODE.
• The actual internal product temperature will appear in the display. To display the set internal product
temperature or to change the set values for core temperature during operation, press the key once
and make corrections as required.
When the operator set internal temperature has been reached, a buzzer will sound indicating the end of
the operating mode.
• To stop the buzzer, press the start/stop key or open the oven door.
To check the length of time the product has been operating in the core temperature mode, press and hold the
time key along with the core temperature key . The time period will appear at the top of the display.
CHEF OPERATING TIPS
To prevent over-cooking, remove product from the oven as soon as the required internal
temperature is reached in either the Core Temperature mode or the Core Temperature Delta-T
mode. The Core Temperature mode should not be used for cooking thin product items.
DO NOT USE THE PROBE WHEN COOKING THIN PRODUCTS.
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DELTA-T CORE TEMPERATURE COOKING
This special program function cooks by internal product temperature with the use of
the probe. Unlike the standard core temperature mode, however, the Delta-T oven
temperature automatically increases in direct proportion to the internal temperature
of the product. The Delta-T mode cooks with convection heat but provides a more
gentle method of cooking. Browning occurs toward the end of the cooking cycle.
PRESS THE ON/OFF POWER KEY TO THE ON POSITION.
PRESS THE CHEF FUNCTION KEY.
Press the up and down arrow keys or rotate the adjustment knob until the
Delta-T symbol is highlighted in the display.
PRESS THE CHEF FUNCTION KEY.
Press the up and down arrow keys or rotate the
adjustment knob to select “
YES” for the Delta-T function.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE SETTING.
PRESS THE TEMPERATURE KEY.
Press the up and down arrow keys or rotate the adjustment knob to select the desired
Delta-T cooking temperature within the cooking temperature ranges shown below.
PRESS THE CORE TEMP KEY.
Press the up and down arrow keys or rotate the adjustment knob to select the
internal product cutoff temperature within the temperature ranges shown below.
THE OVEN WILL BEGIN THE DELT
A-T CONVECTIONCOOKING MODE.
The set Delta-T temperature will appear in the display.
The actual internal product temperature will appear in the display.
When the operator set inter
nal temperature has been reached, a buzzer will sound indicating
the end of the operating mode.
• To stop the buzzer, press the start/stop key or open the oven door.
DELTA -T TEMPERATURE
122°F to 131°F (50°C to 55°C)
122°F to 140°F (50°C to 60°C)
122°F to 158°F (50°C to 70°C)
122°F to 158°F (50°C to 70°C)
122°F to 140°F (50°C to 60°C)
CORE TEMPERATURE SETTING
118°F to 136°F (48°C to 58°C)
122°F to 140°F (50°C to 60°C)
172°F (78°C)
172°F (78°C)
172°F (78°C)
PRODUCT
BEEF ROAST
TENDERLOIN
VEAL & LAMB
PORK ROAST
HAM
Delta-T
DIFFERENCE BETWEEN COOKING COMPARTMENT TEMPERATURE
AND INTERNAL PRODUCT TEMPERATURE.
PRODUCT AND OVEN
TEMPERATURE START
INTERNAL PRODUCT
TEMPERATURE REACHED
COOKING
COMPARTMENT
TEMPERATURE
INTERNAL
PRODUCT
TEMPERATURE
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 24
CHEF FUNCTION KEY
There are several auxiliary functions available through the use of the Chef Function Key.
With the exception of the ability to add additional moisture to the oven compartment, that
can only be used during the convection mode, all additional functions can be engaged at any time during any
cooking mode. Chef Functions can also be programmed into a cooking procedure in oven models that
include the deluxe programmable feature. At the end of a cooking mode or program, the oven automatically
disengages all operator-set chef functions. These functions, however, do remain programmed and will
reengage the next time the programmed procedure is used.
PREHEATING
THE PREHEATING FUNCTION IS ENGAGED IN THE CONVECTION MODE AT A FIXED
TEMPERATURE AND TIME. BOTH THE TEMPERATURE AND TIME CAN BE ADJUSTED BY THE
OPERATOR TO COMPLY WITH THE REQUIREMENTS OF THE INDIVIDUAL OPERATION.
SEE START UP PROCEDURES UNDER DEFAULT/MEMO SETTING.
PRESS THE CHEF FUNCTION KEY.
Rotate the adjustment knob until the preheat symbol is highlighted in the display.
PRESS THE CHEF FUNCTION KEY.
Press the up and down arrow keys
or rotate the adjustment knob to select
“YES” for the Preheat function.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE SETTING.
THE OVEN WILL BEGIN THE PREHEAT FUNCTION.
• The set preheat temperature will appear in the display.
• The set preheat time will appear in the display.
• The preheat symbol will appear in the display.
When the set time and temperature has been reached, a buzzer will sound indicating
the end of the preheat function.
• To stop the buzzer, press the start/stop key or open the oven door.
AUXILIARY FUNCTIONS
Preheating
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CHEF FUNCTION KEY
GOLD-N-BROWN
The browning feature is an automatic function designed to regulate humidity for additional color
to products as needed. This feature is particularly useful for adding color to high moisture
products such as chicken and other poultry items or for additional browning of full loads and
other moist products. In addition, this feature may be used to add texture to fried items such as
French fries or breaded chicken. Gold-n-Brown can be used in both the combination mode and
the convection mode and can be programmed into a cooking procedure.
Browning can be used for any product with a set cooking time more than 5-minutes. Depending
on the type of product and product load, the browning feature may also slightly increase the set
cooking time in order to fully complete the browning function. This is a standard operating
condition of this feature.
SELECT AND PRESS THE REQUIRED COOKING MODE AND SET MODE FUNCTIONS.
PRESS THE CHEF FUNCTION KEY.
Rotate the adjustment knob until the browning symbolis highlighted within
the display.
PRESS THE CHEF FUNCTION KEY.
Press the up and down arrow keys or rotate the
adjustment knob to select “
YES” for the browning function.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE SETTING.
The browning indicator light will illuminate directly above the display.
PRESS THE START KEY.
The oven will engage the browning feature in the Combination or Convection mode set
by the operator.
AUXILIARY FUNCTIONS
Brown
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CHEF FUNCTION KEY
COOL-DOWN FEATURE
The cool-down feature provides the operator with the ability to lower the temperature of the
oven compartment at an accelerated pace. This function is useful when it is necessary to immediately
change from a high temperature cooking function to a lower temperature function or to the steam program.
This function is also useful to help cool the oven compartment in preparation for cleaning.
CHEF OPERATING TIP
When using the cool-down feature in preparation for cleaning, it is important to remember
the temperature in the display indicates the air temperature inside the oven compartment
and not the interior walls of the oven. Always make certain to allow the oven walls to cool
to a minimum of 140°F (60°C) before spraying the compartment with oven cleaner.
PRESS THE CHEF FUNCTION KEY.
Rotate the adjustment knob until the cool-down symbol is highlighted in the display.
PRESS THE CHEF FUNCTION KEY.
Press the up and down arrow keys
or rotate the adjustment knob to select
“YES” for the cool-down function.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE SETTING.
OPEN THE OVEN DOOR.
The display will indicate the current temperature of the oven.
ROTATE THE ADJUSTMENT KNOB TO SELECT A COOL-DOWN TEMPERATURE WITHIN A
RANGE OF 212°F TO 68°F (100°C TO 20°C).
THE FACTORY SET DEFAULT IS 122°F (50°C).
The displayed temperature will continue to decline until it reaches the operator set
temperature or factory default temperature if not selected by the operator.
AUXILIARY FUNCTIONS
Cool Down
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CHEF FUNCTION KEY
REDUCED FAN SPEED
The reduced fan speed function is useful for flow-sensitive products such as soufflês and
meringues, or any products affected by a high velocity of air movement.
SELECT AND PRESS THE REQUIRED COOKING MODE AND SET MODE FUNCTIONS.
PRESS THE CHEF FUNCTION KEY.
Rotate the adjustment knob until the fan symbol is highlighted in the display.
PRESS THE CHEF FUNCTION KEY.
Press the up and down arrow keys or rotate
the adjustment knob to select “
YES” for the reduced
fan speed function.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE SETTING.
The reduced fan speed indicator light will illuminate directly above the display.
PRESS THE START KEY.
The oven will start at a reduced fan speed in whatever cooking mode set by the operator.
REDUCED POWER ELECTRIC MODELS ONLY
The reduced power function can be used to reduce kitchen power peaks and energy consumption.
SELECT AND PRESS THE REQUIRED COOKING MODE AND SET MODE FUNCTIONS.
PRESS THE CHEF FUNCTION KEY.
Rotate the adjustment knob until the reduced power symbol is highlighted
in the display.
PRESS THE CHEF FUNCTION KEY.
Press the up and down arrow keys or rotate
the adjustment knob to select “
YES” for the reduced
power function.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE SETTING.
PRESS THE START KEY.
The oven will operate with reduced power in whatever cooking mode set by the operator.
REDUCED POWER WILL RESULT IN LONGER COOKING TIMES.
Redcʼd fan speed
Redcʼd power
AUXILIARY FUNCTIONS
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 28
AUXILIARY FUNCTIONS
CHEF FUNCTION KEY
KEY LOCK
Except as noted, all of the mode keys and
functions available on the Combitherm can be
locked to prevent unauthorized or accidental
changes to the settings.
PRESS THE CHEF FUNCTION KEY.
Rotate the adjustment knob until the key symbol is highlighted within the display.
PRESS THE CHEF FUNCTION KEY.
Press the up and down arrow keys or rotate the
adjustment knob to select “YES” for the key lock function.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE SETTING.
The display will indicate PIN 000.
ROTATE THE ADJUSTMENT KNOB TO PIN 000.
¶ PIN 000 is the factory set default to prevent an accidental lock or unlock of the control functions.
PRESS THE CHEF FUNCTION KEY.
THE DISPLAY WILL INDICATE “ALL KEYS UNLOCKED.”
SELECT AND PRESS THE FIRST
CONTROL FUNCTION TO BE LOCKED.
The display will indicate “LOCK.”
If the wrong key has been selected and locked in error, press the same control key again and
“UNLOCK” will appear in the display.
Continue in this manner until all desired control functions are locked.
PRESS THE START KEY TO CONFIRM THE LOCKING FUNCTION.
Whenever any control function has been locked, the key lock symbol will be illuminated within the display.
Whenever any locked control function is pressed, the key lock symbol will flash and an
audible signal will sound.
KEY UNLOCK
FOLLOW THE SAME PROCEDURE AS ABOVE UNTIL THE DISPLAY INDICATES “ALL KEYS UNLOCKED.”
To unlock the Chef Function key.
PRESS THE POWER KEY TO TURN THE OVEN OFF.
PRESS THE CHEF FUNCTION KEY
ROTATE THE ADJUSTMENT KNOB TO PIN 000 TO DISENGAGE ALL LOCK FUNCTIONS.
PRESS THE CHEF FUNCTION KEY. THE DISPLAY WILL INDICATE “ALL KEYS UNLOCKED.”
Key lock
OPERATING ELEMENTS THAT
CANNOT BE LOCKED
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 29
CHEF FUNCTION KEY
STEAM INJECTION
Additional steam can be added to the cooking compartment at any time when cooking in the
convection mode.
PRESS THE CHEF FUNCTION KEY.
Rotate the adjustment knob until the steam injection symbolis highlighted within
the display.
PRESS THE CHEF FUNCTION KEY.
Press the up and down arrow keys or rotate
the adjustment knob to select “
YES” for the steam
injection function.
PRESS THE CHEF FUNCTION KEY TO ACTIVATE THE STEAM INJECTION FUNCTION.
Additional steam is injected into the oven compartment for a time period of
approximately 15 seconds.
NOTE: Steam injection cannot be programmed through the control keypad, but can
be programmed through optional Kitchen Management software.
AUXILIARY FUNCTIONS
Add moisture
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 30
AUXILIARY FUNCTIONS
GENERAL SMOKER OPERATION
SMOKING FUNCTION
LOAD WOOD CHIPS.
G
Measure one container full of dry wood chips.
G
Soak dry chips in water for 5 minutes.
G
Shake excess water off wood chips.
G
Place moistened chips back into the container
and position the container securely on the two prongs
located on the interior back panel of the oven.
A full container of wood chips will produce smoke
for an approximate period of one to two hours
depending on the cooking temperature being used
for the selected product. The tested procedures in
this manual for many of the products that are appropriate
for smoking provide complete product smoke penetration
and full smoke flavor.
CHEF OPERATING TIP
Products such as ribs that require heavier smoke penetration to reach full smoke flavor
should remain in the oven after cooking has been completed. Do not open the oven door.
Set the oven in the Low Temperature Steam Mode at 140° to 160°F (60° to 71°C) and allow
the product to remain in the oven for a period of one hour.
If you would like assistance, you are invited to contact an Alto-Shaam corporate chef for recommendations.
NOTE: Always keep the OVEN DOOR CLOSED
whenever operating the smoking function.
The Combitherm Smoker can be operated without using the smoking function. After using the oven as a
smoker, however, it is necessary to clean the oven in order to prevent a transfer of smoke flavor to nonsmoked products. Cleaning instructions are provided in this manual.
AVAILABLE FROM ALTO-SHAAM
WOOD CHIPS20 POUND BULK PACKS
APPLEWC-22543
HICKORYWC-2829
CHERRYWC-22541
SUGAR MAPLEWC-22545
THE TOTAL WEIGHT OF WOOD CHIP
BULK PACKS MAY VARY DUE TO HIGH
MOISTURE CONTENT WHEN PACKAGED
.
THE USE OF IMPROPER MATERIALS FOR THE
SMOKING FUNCTION COULD RESULT IN DAMAGE,
HAZARD, EQUIPMENT FAILURE, OR COULD
REDUCE THE OVERALL LIFE OF THE OVEN.
DO NOT USE SAWDUST FOR SMOKING.
DO NOT USE WOOD CHIPS SMALLER THAN
THUMBNAIL SIZE.
DO NOT OPEN THE OVEN DOOR DURING
THE SMOKING FUNCTION. The introduction
of outside air in the oven compartment may
cause the wood chips to flame.
ON EQUIPPED MODELS
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CHEF FUNCTION KEY
SMOKER FEATURE
The ability to smoke product, hot or cold, is offered on all boiler-free electric models and on all
gas models with the exception of the 10•20ESGAS, the 12•18ESGAS, and the 20•20ESGAS. The
smoking function can be engaged in either the Combination mode or the Convection mode of
operation. The smoking function cannot be operated when the oven is operating in the steam
mode or the retherm mode.
SELECT AND PRESS THE REQUIRED COOKING MODE (CONVECTION OR COMBINATION).
TO SET COOK TEMPERATURE:
PRESS THE TEMPERATURE KEY.
The cooking temperature will appear highlighted within the oven display.
Press the up and down arrow keys or rotate the adjustment knob to select the desired
cooking temperature.
TO SET COOK TIME:
PRESS THE TIME KEY.
The cooking time will appear highlighted within the oven display.
Press the up and down arrow keys or rotate the adjustment knob to select the time
desired.
or
Set control for continuous operation by rotating the adjustment knob to the right until desired
time appears in the display.
TO ACTIVATE SMOKER:
PRESS THE CHEF FUNCTION KEY.
Rotate the adjustment knob until the smoker symbol is highlighted
within the display.
PRESS THE CHEF FUNCTION KEY.
Press the up and down arrow keys or rotate the
adjustment knob to select “YES” for the Smoker function.
PRESS THE CHEF FUNCTION KEY TO CONFIRM
THE SETTING.
PRESS THE START KEY TO ACTIVATE THE SMOKER FUNCTION.
AUXILIARY FUNCTIONS
Smoker
ON EQUIPPED MODELS
U.S . PAT. 7,157,668
METAL PARTS OF THIS EQUIPMENT
BECOME EXTREMELY HOT WHEN IN
OPERATION. TO AVOID BURNS,
ALWAYS USE HAND PROTECTION
WHEN OPERATING THIS APPLIANCE.
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CHEF FUNCTION KEY
ENERGY LOCK
FOR USE WITH OVENS INSTALLED UNDER A VENTLESS HOOD.
Energy lock is a safety feature to prevent the oven control from being operated unless the ventless
oven hood is in operation. The energy lock indicator light will illuminate in the control display if this
situation occurs and the oven control will be inoperable until the oven hood is reset and operating.
PRESS THE CHEF FUNCTION KEY.
Rotate the adjustment knob until the energy lock symbolis highlighted within the
display.
PRESS THE CHEF FUNCTION KEY.
Press the up and down arrow keys or rotate
the adjustment knob to select “
YES” for the energy
lock function.
PRESS THE CHEF FUNCTION KEY TO ACTIVATE THE ENERGY LOCK FUNCTION.
The oven control will not operate when power is engaged until the ventless hood
is reset and operating.
Press the “Combi Reset” button on the ventless hood to energize the hood and
r
eturn the oven control to normal operation.
ENERGY PROTECTION FURNISHED UPON REQUEST AS A FACTORY INSTALLED OPTION
In locations where the electric service is regulated with a device installed on site, this function will
protect full power to the Combitherm for the duration of the next operator set program or cooking mode.
This function cannot be set during an active cooking mode or program. Power interruption may affect all
other electric service within the regulated location.
FOR USE ONLY IN THOSE COUNTRIES WHERE THE LOCAL ELECTRIC
UTILITY PROVIDES AN ENERGY OPTIMIZATION SYSTEM INSTALLED ON SITE.
PRESS THE CHEF FUNCTION KEY.
Rotate the adjustment knob until the program protection symbolis highlighted
within the display.
PRESS THE CHEF FUNCTION KEY.
Press the up and down arrow keys or rotate
the adjustment knob to select “
YES” for the energy
protection function.
PRESS THE CHEF FUNCTION KEY TO ACTIVATE THE PROGRAM PROTECTION FUNCTION.
AUXILIARY FUNCTIONS
Energy Lock
Program protection
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 33
MOISTURE VENT KEY
This function provides the operator with the ability to eliminate excessive moisture from
the oven compartment and the exterior surface of the foods being cooked. The moisture
vent key is designed to operate in both the Combination mode and in the Convection
cooking mode. On deluxe models, this function can also be made part of a cooking program.
PRESS THE MOISTURE VENT KEY TO REDUCE STEAM AND MOISTURE LEVELS IN THE OVEN.
The illuminated, blue portion of the Moisture Vent Key will go out. Open vent symbol will illuminate
within the display.
PRESS THE MOISTURE VENT KEY TO DISENGAGE THE MOISTURE VENT KEY FUNCTION.
The blue portion of the Moisture Vent Key will illuminate. Open vent symbol within the display
will extinguish.
AT THE END OF A COOKING MODE, THE MOISTURE VENT KEY WILL AUTOMATICALLY DISENGAGE.
ADVANCE FEATURES
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 34
QUICK PROGRAMMING
This quick programming function provides the operator with the ability to temporarily program a cooking
procedure using multiple cooking modes, along with any auxiliary functions desired. Quick programming is
particularly useful when cooking several batches of the same product back-to-back and will remain
programmed until any new cooking mode key is pressed.
PRESS AND HOLD THE FIRST REQUIRED COOKING MODE FOR A PERIOD OF 3-SECONDS.
01/01 will appear at the top of the display indicating STEP ONE.
The temperature and time will appear directly below 01/01.
PRESS THE TEMPERATURE KEY.
The temperature will become highlighted within the display.
ROTATE THE ADJUSTMENT KNOB TO SELECT THE REQUIRED TEMPERATURE.
PRESS THE TIME KEY OR THE CORE TEMP KEY .
The time or core temperature will become highlighted within the display.
ROTATE THE ADJUSTMENT KNOB TO SELECT THE REQUIRED SETTING.
PRESS AND HOLD THE SECOND REQUIRED COOKING MODE FOR A PERIOD OF 3-SECONDS.
Follow the above directions until all steps have been entered.
PRESS THE START KEY.
The oven will begin cooking as programmed, automatically switching to each cooking
mode entered. Each step entered will be indicated in the display as the oven cycles from
mode to mode. EXAMPLE: 01/05 = STEP ONE OF FIVE
02/05 = STEP TWO OF FIVE
PRESS THE STOP KEY OR OPEN THE OVEN DOOR WHEN THE BUZZER SOUNDS AT THE END
OF THE PROGRAM.
THIS PROGRAM WILL REMAIN IN TEMPORARY MEMORY UNTIL ANY NEW
COOKING MODE KEY IS PRESSED. QUICK PROGRAMMING CAN BE SAVED AND
STORED IN MEMORY ON DELUXE MODELS ONLY.
ADVANCE FEATURES
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 35
Auxiliary Functions are made part of the control as an additional convenience to the operator, however,
these functions are not necessary for the general operation of the Combitherm oven.
START TIME PRESELECT
Start time preselect provides the operator with the ability
to program a fixed start time for oven operation. This
function can be operated when cooking in any mode and
is offered as a convenience to set an advanced start-up of
the preheating function prior to the beginning of the
production day. It can also be used for advance start-up
for non-refrigerated items such as baked potatoes.
SELECT AND PRESS THE REQUIRED COOKING MODE.
Set all mode functions such as temperature, time, core temperature, etc.
The time entered in the initial operational mode setup will automatically be
reflected on the start time preselect display.
PRESS AND HOLD THE TIME KEY WHILE TURNING THE ADJUSTMENT KNOB.
The display will indicate the current programmed settings in 24-hour (military) time.
The cooking time shown (
UPPER RIGHT) indicates automatic oven operation for a period of one hour and
appears only when cooking by time as entered in the initial operational mode setup.
TO CHANGE THE STARTING TIME, PRESS AND HOLD THE TIME KEY AND TURN THE
ADJUSTMENT KNOB.
Rotate the adjustment knob to select the starting time desired. As the starting time is
changed, the countdown for oven start (
LEFT) and the ending time will automatically
adjust accordingly.
RELEASE THE TIME KEY AFTER THE REQUIRED STARTING TIME HAS BEEN SELECTED.
The oven preselect start time display will immediately begin a countdown and will
automatically start the oven when zero is reached.
THIS FUNCTION CAN BE CANCELLED AT ANY TIME BY PRESSING THE START/STOP KEY .
To prevent food spoilage, this feature
is not recommended for use with any
raw product that requires temperature
maintenance at or under 40°F (4°C).
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 36
COMBITHERM PROGRAMMING SYMBOLS
PROGRAM FUNCTION
RECORDING A COOKING PROCEDURE
Recording a cooking procedure provides the operator with the ability to test and
verify all set operating parameters for the selected cooking modes and to make any
necessary adjustments before saving and storing the procedure into memory.
PRESS THE PROGRAM INSTALL AND EDIT KEY.
Press the up and down arrow keys or rotate the adjustment
knob until the record symbolis highlighted in the display.
PRESS THE PROGRAM INSTALL KEY TO CONFIRM THE SELECTION.
The display will indicate “Recorder ON” and the record symbol will appear in the display.
SELECT AND PRESS THE FIRST REQUIRED COOKING MODE.
Set all cooking mode parameters for temperature, time, or internal product temperature
plus auxiliary functions, and advanced features for the first step to be recorded.
PRESS THE START KEY TO BEGIN THE FIRST RECORDED STEP.
When the cooking time has expired or the operator set internal temperature has been reached, a buzzer will
sound indicating the end of the operating mode.
• To stop the buzzer, press the start/stop key or open the oven door.
SELECT AND PRESS THE SECOND REQUIRED COOKING MODE.
Set all cooking mode parameters for temperature, time, or internal product temperature
plus auxiliary functions, and advanced features for the second step to be recorded.
PRESS THE START KEY TO BEGIN THE SECOND RECORDED STEP.
Continue to record cooking modes as indicated for up to 20 steps.
All cooking mode steps entered with “Recorder ON” will remain in memory, in the order entered, until the recorder is
turned off. Recorded procedures will not be lost or affected by pressing the stop/start key .
RECORD
COPY PROCEDURE
INSERT STEP
SAVE
DELETE PROCEDURE
APPEND STEP
NEW PROCEDURE
EDIT PROCEDURE
DELETE STEP
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 37
TO CANCEL THE RECORDING FUNCTION
WITH THE “Recorder ON” FUNCTION ACTIVATED, PRESS THE PROGRAM INSTALL AND EDIT KEY.
Press the up and down arrow keys or rotate the adjustment knob until the record
symbolis highlighted in the display.
PRESS THE PROGRAM INSTALL KEY TO CONFIRM THE SELECTION.
“Recorder OFF” will appear in the display and the oven can be operated normally.
SAVING A RECORDED COOKING PROCEDURE
When the previous cooking mode steps recorded produce satisfactory results, the recorded
cooking procedure can be saved in memory for future use.
PRESS THE PROGRAM INSTALL/EDIT KEY.
Press the up and down arrow keys or rotate the
adjustment knob until the save symbolis highlighted in the display.
PRESS THE PROGRAM INSTALL/EDIT KEY TO CONFIRM THE SELECTION.
Name the procedure. Rotate the adjustment knob to select the first letter
of the procedure name. Press the up and down arrow key to select
second letter position and rotate the adjustment knob to select the second
letter
. Continue this procedure for each subsequent alpha character,
number, or symbol required.
PRESS THE PROGRAM INSTALL AND EDIT KEY TO CONFIRM THE PROCEDURE NAME.
The display will indicate the first unoccupied memory location within the programmed menu.
If an alternate location is desired, rotate the adjustment knob to highlight another unoccupied,
numbered memory location within the programmed menu. If an occupied location is selected,
the existing procedure will be replaced by the new procedure.
PRESS THE PROGRAM INST
ALL/EDIT KEY TO CONFIRM THE PROCEDURE LOCATION.
The display will indicate “please wait” and will return to the main menu display.
The procedure has now been saved in the selected location and can be verified by rotating the
adjustment knob to the saved procedure.
To review the set operating parameters of any programmed procedure, press the programmed menu key
and rotate the adjustment knob until the procedure to be reviewed is highlighted in the display. Press the chef
function key. The cooking mode key for the first step will illuminate and the program mode, temperature,
time, or core temperature will appear in the display. Rotate the adjustment knob to review each step.
——————
—
A
PROGRAM FUNCTION
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 38
CREATING A NEW COOKING PROCEDURE
Cooking procedures for items prepared on a regular basis can be stored in memory.
PRESS THE PROGRAM INSTALL/EDIT KEY.
Press the up and down arrow keys or rotate the adjustment knob until the new procedure
symbol is highlighted in the display.
PRESS THE PROGRAM INSTALL/EDIT KEY TO CONFIRM THE SELECTION.
All cooking mode keys will begin to flash and 01/01 will appear at the top of the
display indicating the first cooking step.
SELECT AND PRESS THE FIRST REQUIRED COOKING MODE.
Set cooking mode functions for temperature and time, or internal core temperature. Add any auxiliary functions
along with the moisture venting feature. Follow the basic operating instructions located in this booklet. Auxiliary
functions can be added by pressing the chef function key after entering the operating mode parameters for
each individual step and pressing the up and down arrow keys or rotating the adjustment knob to select the
auxiliary function required. Press the chef function key to confir
m the auxiliary function setting(s) for each step.
PRESS THE PROGRAM INSTALL/EDIT KEY TO CONFIRM THE FIRST STEP.
SELECT AND PRESS THE SECOND REQUIRED COOKING MODE.
The display will indicate 02/02 indicating the second cooking mode step.
Set all cooking mode functions as indicated above.
PRESS THE PROGRAM INSTALL/EDIT KEY TO CONFIRM THE SECOND STEP.
CONTINUE WITH THE ABOVE INSTRUCTIONS UNTIL ALL MODE STEPS AND FUNCTIONS ARE ENTERED.
UP TO 20 COOKING MODE STEPS CAN BE SAVED IN A SINGLE PROCEDURE.
AFTER ALL FUNCTIONS ARE ENTERED,
PRESS THE PROGRAM INSTALL/EDIT KEY TO CONFIRM THE NEW PROCEDURE.
Name the procedure. Rotate the adjustment knob to select
the first letter of the procedure name. Press the up and
down arrow key to select second letter position and rotate
the adjustment knob to select the second letter. Continue for
each subsequent alpha character, number, or symbol required.
PRESS THE PROGRAM INSTALL AND EDIT KEY TO CONFIRM THE PROCEDURE NAME.
Rotate the adjustment knob to highlight an unoccupied, numbered memory location within the
programmed menu. If an occupied location is selected, the existing procedure will be
replaced by the new procedure.
PRESS THE PROGRAM INSTALL AND EDIT KEY TO CONFIRM THE PROGRAM INST
ALLATION.
The display will indicate “please wait” and will return to the main menu display.
——————
—
A
PROGRAM FUNCTION
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 39
START A PROGRAMMED PROCEDURE
PRESS THE PROGRAMMED MENU KEY.
All stored procedures are listed alphabetically or numerically as selected by the
operator in the initial oven start up procedures under the program index category.
Rotate the adjustment knob until the required procedure is highlighted in the display.
PRESS THE START KEY.
To review the set parameters of any programmed procedure, press the
programmed menu key and rotate the adjustment knob until the procedure to
be reviewed is highlighted in the display. Press the chef function key. The
cooking mode, temperature, time, or core temperature will appear in the display.
COPY A PROGRAMMED PROCEDURE
PRESS THE PROGRAMMED MENU KEY.
Rotate the adjustment knob until the procedure to be copied is highlighted in the display.
PRESS THE PROGRAM INSTALL AND EDIT KEY.
Press the up and down arrow keys or rotate the adjustment knob until the copy»
procedure symbol is highlighted in the display.
PRESS THE PROGRAM INSTALL AND EDIT KEY.
The display will select an empty, numbered location to insert the duplicate copy.
PRESS THE PROGRAM INSTALL AND EDIT KEY TO CONFIRM THE DUPLICATION.
The display will indicate “please wait” and will retur
n to the main menu display.
An exact duplicate of the selected procedure has been inserted in the new location under the same name as the
original procedure. The duplicate can be renamed and edited as required. See additional editing instructions.
DELETE A PROGRAMMED PROCEDURE
PRESS THE PROGRAMMED MENU KEY.
Rotate the adjustment knob to highlight the procedure to be deleted.
PRESS THE PROGRAM INSTALL/EDIT KEY.
Press the up and down arrow keys or rotate the adjustment
knob until the deletesymbol is highlighted in the display.
PRESS THE PROGRAM INSTALL AND EDIT KEY TO CONFIRM THE SELECTION.
The programmed procedure has been deleted from the menu.
PROGRAM FUNCTION
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 40
EDIT A PROGRAMMED PROCEDURE
PRESS THE PROGRAMMED MENU KEY.
Rotate the adjustment knob until the procedure to be edited is highlighted in the display.
PRESS THE PROGRAM INSTALL AND EDIT KEY.
Press the up and down arrow keys or rotate the adjustment knob until
the edit symbol is highlighted in the display.
PRESS THE PROGRAM INSTALL AND EDIT KEY TO CONFIRM THE SELECTION.
The display will indicate the procedure name, cooking step number
(
EXAMPLE: “01/05” = STEP ONE OF FIVE), and operating parameters for
temperature, time, or internal product temperature.
To change the operating parameters for the first step:
Press the cooking temperature key and rotate the adjustment knob.
Press the time key and rotate the adjustment knob to change the cooking time.
Press the core temperature key and rotate the adjustment knob to change the core temp.
Auxiliary functions can be added by pressing the chef function key after entering the
operating mode parameters for each individual step and pressing the up and down arrow
keys or rotate the adjustment knob to select the auxiliary function required. Press the chef
function key to confirm the auxiliary function setting.
Press the down arrow key for each subsequent step of the procedure and make changes to
each step as required.
PRESS THE PROGRAM INSTALL AND EDIT KEY TO CONFIRM THE SETTING.
The display will indicate the same name as the original procedure, minus the last letter. Install
the last letter by rotating the adjustment knob to the correct letter.
Rename the procedure by pressing the down arrow key to clear the display.
Press the up and down arrow key to select each individual alpha character, number,
or symbol. Rotate the adjustment knob to select each subsequent letter.
PRESS THE PROGRAM INSTALL AND EDIT KEY TO CONFIRM THE NAME.
PRESS THE PROGRAM INSTALL AND EDIT KEY TO INSTALL THE PROGRAM.
To review the set operating parameters of any programmed procedure, press the programmed menu key
and rotate the adjustment knob until the procedure to be reviewed is highlighted in the display. Press the chef
function key. The cooking mode key for the first step will illuminate and the program mode, temperature,
time, or core temperature will appear in the display. Rotate the adjustment knob to review each step.
PROGRAM FUNCTION
PROGRAM EDITING
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 41
INSERT A PROGRAMMED PROCEDURE STEP
PRESS THE PROGRAMMED MENU KEY.
Rotate the adjustment knob until the procedure to add a new step is highlighted in the display.
PRESS THE PROGRAM INSTALL KEY.
Press the up and down arrow keys or rotate the adjustment knob until
the edit proceduresymbol is highlighted in the display.
PRESS THE PROGRAM INSTALL AND EDIT KEY TO CONFIRM THE SELECTION.
The display will indicate the procedure name, cooking step number and
operating parameters for temperature, time, or internal product temperature.
Press the up or down arrow keys to select the step
immediately following the position wanted for the new step.
PRESS THE CHEF FUNCTION KEY
.
A choice of editing symbols and auxiliary functions will appear in the
display. Press the up and down arrow keys or rotate the adjustment
knob to select the insert step symbol.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE SELECTION.
Press the up and down arrow keys or rotate the
adjustment knob to select “
YES” for step insertion.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE SELECTION.
All cooking modes will begin to flash. Select and press the cooking mode to be inserted. Press and set
cooking temperature, time, or internal core temperature. Auxiliary functions can be added by pressing the
chef function key after entering the operating mode parameters for each individual step and pressing the
up and down arrow keys or rotating the adjustment knob to select the auxiliary function required. Press
the chef function key to confirm the auxiliary function setting. Add the moisture vent key function if required.
PRESS THE INSTALL/EDIT KEY TO CONFIRM THE SELECTED MODE AND FUNCTIONS.
The display will indicate the procedure name minus the last letter. Reinsert the last
letter with the adjustment knob or use the
up and down arrow keys in
conjunction with the adjustment knob to rename the procedure.
PRESS THE INSTALL/EDIT KEY TO CONFIRM THE NAME.
PRESS THE INSTALL/EDIT KEY TO INSERT THE NEW STEP INTO THE PROCEDURE.
The display will indicate “please wait” and will return to the main menu display.
TO VERIFY THE INSER
TED STEP, PRESS THE CHEF FUNCTION KEY
WHILE THE ALTERED PROCEDURE IS HIGHLIGHTED. ROTATE THE
ADJUSTMENT KNOB TO REVIEW ALL SET PARAMETERS.
Insert step ?
PROGRAM FUNCTION
PROGRAM EDITING
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 42
APPEND A PROGRAMMED PROCEDURE STEP
PRESS THE PROGRAMMED MENU KEY.
Rotate the adjustment knob until the procedure to include a final step is highlighted in the display.
PRESS THE PROGRAM INSTALL KEY.
Press the up and down arrow keys or rotate the adjustment knob until
the edit procedure symbol is highlighted in the display.
PRESS THE PROGRAM INSTALL AND EDIT KEY TO CONFIRM THE SELECTION.
The display will indicate the procedure name, cooking step number and
operating parameters for temperature, time, or internal product temperature.
Press the up or down arrow keys to select the last step
of the procedure.
PRESS THE CHEF FUNCTION KEY
.
A choice of editing symbols and auxiliary functions will appear in the
display. Press the up and down arrow keys or rotate the adjustment
knob to select the append step symbol.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE SELECTION.
Press the up and down arrow keys or rotate
the adjustment knob to select “
YES” for append step.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE SELECTION.
All cooking modes will begin to flash. Select and press the cooking mode to be appended. Press and set
cooking temperature, time, or internal core temperature. Auxiliary functions can be added by pressing the
chef function key after entering the operating mode parameters for each individual step and pressing the
up and down arrow keys or rotating the adjustment knob to select the auxiliary function required. Press
the chef function key to confirm the auxiliary function setting. Add the moisture vent key function if required.
PRESS THE INSTALL/EDIT KEY TO CONFIRM THE SELECTED MODE AND FUNCTIONS.
The display will indicate the procedure name minus the last letter. Reinsert the last
letter with the adjustment knob or use the
up and down arrow keys in
conjunction with the adjustment knob to rename the procedure.
PRESS THE INSTALL/EDIT KEY TO CONFIRM THE NAME.
PRESS THE INSTALL/EDIT KEY TO INSERT THE NEW STEP INTO THE PROCEDURE.
The display will indicate “please wait” and will return to the main menu display.
TO VERIFY THE INSERTED STEP, PRESS THE CHEF FUNCTION KEY WHILE THE ALTERED PROCEDURE
IS HIGHLIGHTED. ROTATE THE ADJUSTMENT KNOB TO REVIEW ALL SET PARAMETERS.
Append step ?
PROGRAM FUNCTION
PROGRAM EDITING
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 43
DELETE A PROGRAMMED STEP
PRESS THE PROGRAMMED MENU KEY.
Rotate the adjustment knob to highlight the procedure in which a step is to be deleted.
PRESS THE PROGRAM INSTALL KEY.
Press the up and down arrow keys or rotate the adjustment knob until
the edit proceduresymbol is highlighted in the display.
PRESS THE PROGRAM INSTALL AND EDIT KEY TO CONFIRM THE SELECTION.
The display will indicate the procedure name, cooking step number and
operating parameters for temperature, time, or internal product temperature.
Press the up or down arrow keys to select the step to be deleted.
PRESS THE CHEF FUNCTION KEY
.
A choice of editing symbols and auxiliary functions will appear in the
display. Press the up and down arrow keys or rotate the adjustment
knob to select the delete stepsymbol.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE SELECTION.
Press the up and down arrow keys or rotate
the adjustment knob to select “
YES” for step deletion.
PRESS THE CHEF FUNCTION KEY TO CONFIRM THE SELECTION.
PRESS THE INSTALL/EDIT KEY TO CONFIRM THE DELETION.
The display will indicate the name of the procedure as originally programmed.
PRESS THE INSTALL/EDIT KEY TO CONFIRM THE NAME.
PRESS THE INSTALL/EDIT KEY TO REMOVE THE DELETED STEP FROM THE PROGRAM.
The display will indicate “please wait” and will return to the main menu display.
TO VERIFY THE STEP HAS BEEN DELETED, PRESS THE CHEF FUNCTION
KEY WHILE THE DELETE STEP PROCEDURE IS HIGHLIGHTED. ROTATE
THE ADJUSTMENT KNOB TO REVIEW ALL SET PARAMETERS.
Delete step ?
PROGRAM FUNCTION
PROGRAM EDITING
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 44
RAPID-TOUCH
™
KEYS
Rapid-Touch programmed quick-keys provide the operator with the
ability to assign procedures used on a regular basis to individual keys
that can be identified with a picture graphic resembling the product.
Various picture graphics are included with the Combitherm oven.
TO ASSIGN A PROCEDURE TO A PROGRAM RAPID-TOUCH KEY
PRESS THE PROGRAMMED MENU KEY.
Rotate the adjustment knob to highlight the procedure to be assigned to Rapid-Touch operation.
PRESS AND HOLD THE SELECTED RAPID TOUCH KEY FOR A PERIOD OF THREE SECONDS.
When the buzzer sounds, the programmed procedure
has been assigned to the Rapid-Touch key selected.
Identify the Rapid-Touch key with a corresponding picture graphic.
TO OPERATE A PROCEDURE ON RAPID-TOUCH KEY
PRESS AN ASSIGNED RAPID TOUCH KEY.
The indicator light to the upper right of the selected Rapid-Touch key will
illuminate. The oven will begin operating as programmed with the display
indicating the name of the procedure, the step number, the total number
of steps, and the temperature, time, or internal product temperature.
When the cooking time for all programmed modes has expired or the operator set internal temperature has
been reached, a buzzer will sound indicating the completion of the program.
• To stop the buzzer, press the start/stop key or open the oven door.
Once a Rapid-Touch key is programmed with a procedure, care should be taken not to
press and hold the programmed key with another procedure highlighted in the display
by means of the programmed menu key. The highlighted procedure will override the
Rapid-Touch key program and the picture graphic will no longer match the procedure.
01/02 ROAST CHICKEN
350
F
PROGRAM FUNCTION
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 45
CONTROL PANEL IDENTIFICATION
OFF POSITION
Maintains oven in a stand-by mode.
STEAM
The oven will operate at a fixed steam temperature of
212° F (100°C).
COMBINATION
A combination of steam and convection heat to cook at a
temperature between 86°F and 482°F (30°C to 250°C) to be
set by the operator.
CONVECTION
Convection heat to cook without steam at a temperature
between 86°F and 482°F (30°C and 250°C) to be set by
the operator.
LOW STEAM
Low temperature steaming within an operator set temperature
range of 98°F to 210°F (30°C and 98°C).
CLEANING FUNCTION
An automatic cleaning cycle to heat the oven to the correct
temperature, followed by a manual application of Combitherm
Oven Cleaner and cleaning cycle.
COOKING TEMPERATURE DIAL
To be manually set by the operator to the cooking
temperature required.
METAL PARTS OF THIS EQUIPMENT
BECOME EXTREMELY HOT WHEN IN
OPERATION. TO AVOID BURNS,
ALWAYS USE HAND PROTECTION
WHEN OPERATING THIS APPLIANCE.
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 46
CONTROL PANEL IDENTIFICATION
GOLD-N-BROWN
™
The browning feature is an automatic function designed to regulate humidity for additional color to
products as needed. This feature is particularly useful for adding color to high moisture products
such as chicken and other poultry items or for additional browning of full loads and other moist
products. In addition, this feature may be used to add texture to fried items such as French fries or
breaded chicken. Gold-n-Brown can be used in both the combination mode and the convection mode
and can be programmed into a cooking procedure.
OVEN DISPLAY
Indicates time remaining, interior oven temperature, or internal product temperature.
OVEN TEMPERATURE
To be pressed to display interior oven temperature.
SMOKING FEATURE (OPTION)
Provides the ability to smoke product, hot or cold, on all boiler-free electric models and on all gas
models with the exception of the 10•20ESGAS, the 12•18ESGAS, and the 20•20ESGAS. The
smoking function can be engaged in either the Combination mode or the Convection mode of
operation. The smoking function cannot be operated when the oven is operating in either steam
mode or low temperature steam mode.
COOKING TIMER
Turned to the left for continuous cooking time or to decrease time in increments of one minute.
Turn to the right to set and increase time in increments of one minute.
CORE TEMPERATURE PROBE (OPTION)
Used to set the required internal product temperature.
FULL SPEED FAN POSITION
HALF SPEED FAN POSITION
OVEN COOL-DOWN POSITION
Assists in cooling the oven at an accelerated pace when changing from high to lower temperature
cooking. The oven door should be open when using this feature.
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 47
CONTROL OPERATION
The simplified, S-Control Combitherm oven includes all of the basic operating functions of the standard,
ES-Series, Combitherm oven models. Oven operation is initiated with the use of rotary dials. Additional
functions are initiated by pressing the represented function symbol.
All of the cooking procedures shown in this guide can be adapted for use with S-Control models by manually
setting the suggested cooking mode, time, and temperature indicated.
PREHEATING
1. Rotate the Cooking Mode dial to the convection mode.
2. Rotate the Cooking Temperature dial to the preheating temperature required.
3. Rotate the Cooking Timer dial to the preheating time desired.
Turn to the left for continuous time or to decrease time in increments of one minute.
Turn to the right to set and increase time in increments of one minute.
4. When preheated, the oven can be operated in any cooking mode required.
CORE TEMPERATURE (OPTION)
1. Rotate the Cooking Mode dial to the required cooking mode.
2. Rotate the Cooking Temperature dial to the cooking temperature required.
3. Press the Core Temperature symbol. The letters “Cor” will appear in the display.
4. When “Cor” appears in the display, the timer dial will convert to internal product temperature.
Rotate the Cooking Timer dial to the internal product temperature desired.
Turn to the left to decrease temperature in increments of one degree.
Turn to the right to increase temperature in increments of one degree.
5. In 3-seconds, oven will begin the cook and the display will indicate the internal product temperature
reading of the probe.
6. One minute after the product reaches the set internal product temperature, a buzzer will sound indicating
the end of the operating mode.
TO STOP THE BUZZER, OPEN THE OVEN DOOR OR TURN THE COOKING MODE DIAL TO THE OFF POSITION.
CHEF OPERATING TIPS
The Core Temperature should not be used for cooking thin products.
212°F
100°C
98° - 210°F
30° - 98°C
Cor
DO NOT HANDLE PANS CONTAINING
LIQUID OR SEMILIQUID PRODUCTS
POSITIONED ABOVE THE EYE LEVEL OF
THE OPERATOR. SUCH PRODUCTS CAN
SCALD AND CAUSE SERIOUS INJURY.
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S ECTION 1 – CONTROL P ANEL I DENTIFICATION • COMBITHERM GAS TECHNICAL S ERVICE M ANUAL • 48
CONTROL OPERATION
GOLD-N-BROWN
™
Press the GOLD-N-BROWN browning symbol at the start of any cooking cycle in the combination
mode or convection mode to automatically add additional product color.
SMOKING (OPTION)
LOAD WOOD CHIPS.
G
Measure one container full of dry wood chips.
G
Soak dry chips in water for 5 minutes.
G
Shake excess water off wood chips.
G
Place moistened chips back into the container and
position the container securely on the two prongs
located on the interior back panel of the oven.
SMOKING feature may be started at the beginning of any cooking cycle in the Combination mode or
Convection mode.
Push the Smoker icon key.
A full container of wood chips will produce smoke for an approximate period of one to two hours depending
on the cooking temperature being used for the selected product. The tested procedures in this manual for
many of the products that are appropriate for smoking provide complete product smoke penetration and full
smoke flavor.
When the cooking cycle is completed, a buzzer will sound indicating the end of the preheat function.
TO STOP THE BUZZER, OPEN THE OVEN DOOR OR TURN THE COOKING MODE DIAL TO THE OFF POSITION.
CHEF OPERATING TIP
Products such as ribs that require heavier smoke penetration to reach full smoke flavor
should remain in the oven after cooking has been completed. Do not open the oven door.
Set the oven in the Low Temperature Steam Mode at 140° to 160°F (60° to 71°C) and allow
the product to remain in the oven for a period of one hour.
NOTE: Always keep the OVEN DOOR CLOSED
whenever operating the smoking function.
The Combitherm Smoker can be operated without using the smoking function. After using the oven as a
smoker, however, it is necessary to clean the oven in order to prevent a transfer of smoke flavor to nonsmoked products. Cleaning instructions are provided in this manual.
HOT STEAM CAUSES BURNS
ROTATE THE DOOR HANDLE TO THE
FIRST OPEN ROTATION POSITION ONLY.
STAND BACK AND WAIT UNTIL THE STEAM IS
VENTED BEFORE FULLY OPENING THE DOOR.
AVAILABLE FROM ALTO-SHAAM
WOOD CHIPS20 POUND BULK PACKS
APPLEWC-22543
HICKORYWC-2829
CHERRYWC-22541
SUGAR MAPLEWC-22545
THE TOTAL WEIGHT OF WOOD CHIP
BULK PACKS MAY VARY DUE TO HIGH
MOISTURE CONTENT WHEN PACKAGED
Return to Main Table of Contents ..................................................3
2
S E CT I ON 2 –PR EV E N TI V E M A IN T E NA N C E • C OM B I T H E R M G A S T E C H N I C A L S E RV I C E M AN U A L • 49
Page 50
P R E V E N T I V EM A I N T E N A N C E
PreventiveMaintenance
In addition to th e routine cleaning and maintenance pr ocedu res, there are several additional steps to be
taken for both sanitation purposes and to keep the oven running at top operating efficiency. These
additional safeguards will help prevent inconvenient down time and cos tly repairs.
●
DO NOT DISPO S E O F G R E A S E , FAT, OR SOLID WA S T E D O W N THE OVEN DRAIN.
Fats and sol ids w ill e ventual ly co agulate in the dra in sy stem, causin g blo ckage. C onse quently , wat er
will back-u p int o the condens er an d interi or ov en co mpartme nt, r esultin g in a n ove n tha t is i noperab le.
●
MAKE C ERTAIN T HE DRAI N SCREEN I S ALWAYS I N PLAC E . REMOVE A NY SOL I D
WASTE M AT E RIAL F R OM THE D RAIN S C REEN B E FORE I T ENTER S THE D R A IN SYST E M.
The routi n e rem o v a l o f sol i d s fr o m the drai n scre e n wil l hel p prev e n t bl o c k a g e.
●
U S E TH E AUT H O RI Z E D C O M B I TH E R M O VE N CLE A N ER O N LY. T h e u s e o f una u t h o r ized
cle a n i n g a g e n t s m a y d i s c o l or o r h a r m t h e i n t erior sur f a c es o f t h e o v e n .
●
TO PRO LONG THE LIF E O F T HE DOOR GAS KET, CLEAN THI S I TEM DAI LY. The acids and
rela t e d c o m p o u n ds f o und i n f a t , p a r t i cular l y chi c k e n f a t , w i l l we a k e n t h e co m p o s i tion o f t h e
gas k e t un l e s s c l e a n e d o n a dail y basi s .Wipe with a h o t , s o a p y c l o t h.
●
T O ADD I T IO N A LLY P R O TE C T GA S K ET L I F E , A L L O W OV E N DO O R TO R EM A I N
S L I GH T LY O PE N AT T HE E N D OF T H E P R O D U CT I O N D AY. A n op e n do o r wil l reli e v e
the press u r e on the d o or g a sket.
●
ROUTINELY CLEAN DOOR HINGES. Open oven door to relieve tension. Clean all parts of the hinge.
R O L L - I N C A R T / F O O DT R O L L E Y C L E A N I N G( O N E Q U I P P E D M O D E L S )
1. Remove food trolley to a cart wash area. Trolleys may be cleaned using any mild
cleaning detergent and warm water.
2. Hand wipe all framing, slides, drip pan, and base. Thoroughly clean debris from
the casters. A spray hose can be used for easier cart cleaning.
3. Remove detergent solution with warm water.
4. Wipe or spray with a sanitizing solution designed for use on metal and vinyl food
contact surfaces.
5. Allow trolley to air dry.
As an alte r nat ive , tr olleys can be s prayed with Combitherm liquid oven
cl ean er whil e in sid e th e ov en. All ow t he t rol ley to r ema in i n th e ov en
th rou gh t he norma l cl ean ing cycle, followed by steps 2 through 5 above.
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P R E V E N T I V EM A I N T E N A N C E
P R O T E C T I N G S T A I N L E S S
S T E E L S U R F A C E S
It is important to guar d
against corrosion in the care
of stainless steel surfaces.
Harsh, corrosive, or
inappropriate chemicals can
completely destroy the
protective surface lay er of
stainless steel. Abrasive pads, steel w ool, o r metal
implements will abrade surfa ces causing damage to
this protective coating and will eventually result in
areas of corrosion. Ev en water, particularly hard
water that contains high to modera te concentrations
of chloride, will cause oxid ation and pitting that
result in rust and corrosion. In addition, many acidic
foods spilled and left to remain on metal su rfaces are
contributing factors that will co rrode sur faces.
Proper cleaning agents, materials, and methods are
vital to maintaining the appearance and life of this
appliance. Spilled foods sh ould b e removed and the
area wiped as soon as possible but at the very least,
a minimum of once a day. Alway s thoroughly rinse
surfaces after us ing a cleaning agent and wipe
standing water as quickly as possible after rinsing.
C L E A N I N G A G E N T S
USE AUTHORIZED COMBITHERM
LIQUID OVEN CLEANER ONLY
Cleaning agents must be chloride-free c ompou nds
and must not cont ain quaternary salts. Never use
hydrochloric acid (muriatic acid) on stainless steel
surfaces. Unauthorized clea ning a gents may discolor
or har m inte rior s urfaces of the oven. R ead and
understand label and material safety da ta she et
before using the oven cleaner.
C L E A N I N G M A T E R I A L S
The cleaning function can
usually be accomplished with
the proper cleaning agent
and a soft, clean cloth. When
more aggressive methods
must be employed, use a
non-abrasive scouring pad on
difficult areas and make
certain to scrub with the
visible grain of sur fac e metal to avoid surface
scratches. Never use wire brushes, metal scouring
pads, or scrapers to remove food residue.
TO PROTECT STAINLESS STEEL
SURFACES, COMPLETELY AVOID
THE USE OF ABRASIVE
CLEANING COMPOUNDS,
CHLORIDE BASED CLEANERS, OR
CLEANERS CONTAINING
QUATERNARY SALTS. NEVER USE
HYDROCHLORIC ACID (MURIATIC
ACID) ON STAINLESS STEEL.
NEVER USE WIRE BRUSHES,
METAL SCOURING PADS OR
SCRAPERS.
S E CT I ON 2 –PR EV E N TI V E M A IN T E NA N C E • C OM B I T H E R M G A S T E C H N I C A L S E RV I C E M AN U A L • 51
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P R E V E N T I V EM A I N T E N A N C E
Establishing a routine cleaning and main tenan ce schedule will help keep the Combitherm oven running at top
operating efficiency and is an absol utely e ssent ial par t of a c ompre hensi ve s anita tion program. Good
equipment maintained and kept clean works better an d lasts longer. PROTECT YOUR I NVE STM ENT.
D A I L Y G A S K E T C L E A N I N G
It is important to prolong the life of the oven gasket by
cleaning this item on a daily basis. Routine cleaning will
help protect the composition of the gasket from
deterioration caused by acidic foods.
1. After allowing the oven to cool, wipe the gasket and
crevices with warm detergent solution and a clean cloth.
2. Remove detergent by wiping the gasket and crevices
with clean rinse water and a cloth.
Do not remove or place gasket in the dishwasher.
P R O B E U S A G E A N DC L E A N I N G
After each use of the CO RE TEM P mode, wipe the
probe tip with a c lean p aper t owel to remove food
debris. Follow by wipi ng the probe with a disposable
alcohol pad. Return the probe to the proper d oor
bracket position.
D A I L Y O V E N C L E A N I N G
To be performed at the end of the production day or
between production shifts.
M O N T H L Y C L E A N I N G
• Water Intake Filt er
• Drain Pipe
• Spray Head
PROBE CL EAN ING PR OCEDURES
1. Remove all food so il fro m probe between loads
and at the end of e ach production shift. Wip e
the entire probe, prob e cable assembly, and
probe holding bracket with warm detergent
solution and a clean cl oth.
2. Remove detergent by wiping the probe, cable,
and bracket with clean rinse water and a c loth.
3. Wipe probe a nd probe bracket with disposable
alcohol pad or sanitizing so lution recommended
for food contact sur fac es.
4. Allow probe and cable to air dr y in the probe
holding bracket.
5. Wipe the pro be wit h a disposable alcohol pad
prior to inserting in a new food product.
ALLOW THE OVEN TO COOL BELOW 280°F (140°C)
BEFORE STARTING THE AUTO-CLEAN FUNCTION.
NOTE: The temperature in the display indicates the
air temperature inside the oven compartment and
not the interior walls of the oven. Always make
certain to allow the oven walls to cool to a minimum
of 280°F (140°C) before cleaning.
S E CT I ON 2 –PR EV E N TI V E M A IN T E NA N C E • C OM B I T H E R M G A S T E C H N I C A L S E RV I C E M AN U A L • 52
Page 53
USE AUTHORIZED COMBITHERM
LIQUID OVEN CLEANER ONLY.
RUBBER GLOVES AND PROTECTIVE
EYE WEAR MUST BE WORN WHEN
USING THE OVEN CLEANER
WATER SUPPLY MUST BE OPEN WHEN
CLEANING PROGRAM IS ACTIVATED.
VERIFY WATER SUPPLY BEFORE STARTING
CLEANING PROGRAM.
.
P R E V E N T I V EM A I N T E N A N C E
Unau thoriz e dclea ning a g ents m a y
discolor or harm interi or surfaces of
the oven . Read and understand label
and ma teria l safety data she et before using the
oven cleaner.
Combither m C lea nin g Liquid:
Causes severe bur ns. Always wear rubber glove
when handling.
Do not get in eyes, on skin, or on clothing.
Do not wear contacts.
Harmful or fatal if swallowed.
Do not breathe mi st.
Use in well ventilated area.
Keep out of reach of children.
Do not use on aluminum. Do not mix with anything bu t water.
TH OR OU G HLY R IN SE E M P T Y C ON TA IN ER W IT H WAT ER A ND
SA FE LY D IS CAR D
Combither m S mar tCl ean™ Clea nin g Tabs:
Protective packaging will begin to dissolve onto skin if handled with
damp or wet hands.
Cleaning agent causes severe burns. Always wear rubber gloves
when handling.
Do not get in eyes, on skin, or on clothing.
Do not wear contacts.
Harmful or fatal if swallowed.
Keep out of reach of children.
Do not use on aluminum.
Do not mix with anything but water.
.
GAS EXHAUST
FLUE DIVERTER
HIGH PRESSURE
RELIEF PORT
OVEN LIGHT
FAN
FAN GUARD
COVER PLATE
OVEN DRAIN
S E CT I ON 2 –PR EV E N TI V E M A IN T E NA N C E • C OM B I T H E R M G A S T E C H N I C A L S E RV I C E M AN U A L • 53
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P R E V E N T I V EM A I N T E N A N C E
A U T O C L E A N
Rem o v e a ll f o o d s crap s a n d res i d u e from t h e
ove n d r a in. Remove shelves, si de racks and pans
and wash separately.
Wi t h t h e o v e n p o w e ro n
PRESS THE CHEF FUNCT ION KEY.
PRESS THE CHEF FUNCT ION KEY.
THE CON TRO L WIL L AS K FOR
VER IFI CATI ON OF THE F OLL OWI NG IT EMS
BEF ORE THE F UNC TIO N CA N BE STA RTE D
A U T O M AT I C C L E A N I N G P R O G R A M ( u n i t s p r i o r t o 3 / 0 9 )
™
Rotate the adjustment kno b
until the AutoClean symbo l is
highlighted in the displa y.
Water turned on?
Clea ning in Process
After 10 minutes, a buzzer will sound and Display will
show “Open Door/Spray Cleaner”.
Open Door / Spray Cleane r
:
Wearing safety glasses and rubber gloves, open door,
remove the drain sc reen and spray Combitherm
liquid oven cleaner dire tly into the drain pipe .
Generously spray the interior oven sur faces with an
even coat of Combither m Liquid Oven Cleaner.
Spray all built-in components.
Verify water is supplied to the oven and
press the upLLand down MMarrow keys or
rotate the adjustment knob to select “YE S”.
PRESS THE CHEF FUNCTION KEY.
Star t AutoClean?
Press the up LLand down MMarrow keys or
rotate the adjustment knob to select “YE S”
for the automatic cleaning function.
PRESS THE CHEF FUNCTION KEY TO
CONFIRM THE SETTING AND START THE
CLEANING PROGRAM.
THE OVEN WILL BEGI N A 50 MI NUTE
CLEANING AND RINSE CY CLE .
Insert the Combitherm Liquid Oven Cleaner spray
nozzle directly into the High Pressure Relief Port
and spray several times.
ON A WEEKLY BASIS - Loosen the thumb screw(s)
and swing Fan Guard Cover Plate toward the back of
the oven. Spray the back of the Fan Guard Cover
Plate, the oven fan, and the left-hand side of the oven.
When oven door is closed again cleaning cy cle
will resume for the remaining 40 minutes.
Clea ning Finished
At the end of the cleaning cycle, the oven wil l beep
and the display will indicate the end of the c ycle.
Press the start / stop key to st op the buzzer and
retur n the oven to normal operation.
DISPLAY WILL CO UNT DO WN INDICATING
TIME REMAINING IN THE CL EAN ING CYCLE.
L E A V E D O O R S L I G H T L Y O P E N A F T E R C L E A N I N G
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P R E V E N T I V E M A I N T E N A N C E
A U T O C L E A N
FORCED RINSING MODE:
If the cleaning cycle is stopped during cleaning, the
unit will immediately go into a Forced Rinsing mode
for 5 minutes.
If power is lost or the unit is tur ned off during
cleaning, the unit will go into a Forced Rinsing mode
when power is restored, or unit is tur ned back on.
Forced Rinsing
Once the Forced Rinsing is complete “Cleaning
Interrupted” will appear on the display.
A U T O M AT I C C L E A N I N G P R O G R A M ( u n i t s p r i o r t o 3 / 0 9 )
™
( C O N T I N U E D )
Clea ning Interrupted
Press the start/stop key to return the oven to nor mal
operation.
N O T E :
I FT H ED O O RI SO P E N E D
D U R I N GT H EC L E A N I N G
P R O C E S S
W I L LA P P E A RI N T H ED I S P L A Y .
, “ C L O S ET H ED O O R ! ”
L E A V E D O O R S L I G H T L Y O P E N A F T E R C L E A N I N G
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P R E V E N T I V E M A I N T E N A N C E
A U T O C L E A N
Rem o v e a l l fo o d s c r aps a n d r e s idue f r o m the
ove n d r a i n. Remove shelves, side racks and pans
and wash separately.
Wi t h t h e o v e n p o w e r O N .
Rotate the C ook ing Mode dial to the
Cleaning mode.
“CLN” will appear in the display.
A U T O M A T I C C L E A N I N G P R O G R A M
™
( u n i t s p r i o r t o 3 / 0 9 )
CLN
After 1 minute “50” will appear in the display
indicating a 50 minute cleaning cycle.
C O N T R O L
O P T I O N
Insert the Combitherm Liquid Oven Cleaner spray
nozzle directly into the High Pressure Relief Port
and spray several times.
ON A WEEKLY BASIS - Loosen the thumb screw(s)
and swing Fan Guard Cover Plate toward the back of
the oven. Spray the back of the Fan Guard Cover
Plate, the oven fan, and the left-hand side of the oven.
When oven door is closed again cleaning cy cle
will resume for the remaining 40 minutes.
FIN
At the end of the cleaning cycle “FIN ” will ap pear in
the display. Turn the Coo king Mode dial to the
OFF position.
50
THE OVEN WILL BEGI N A 50 MI NUTE
CLEANING AND RINSE CY CLE .
DISPLAY WILL CO UNT DO WN INDICATING
TIME REMAINING IN THE CL EAN ING CYCLE.
After 10 minutes, a buzzer will sound and display will
show “DOR”.
DOR
Wearing safety glasses and rubber gloves, open door,
remove the drain screen and spray Combitherm
liquid oven cleaner dire ctly into the drain pipe.
FORCED RINSING MODE:
If the cleaning cycle is stopped after 10 minutes in the
cleaning cycle, the unit will immediately go into a
Forced Rinsing mode and display “RIN” for 5 minutes.
If power is lost or the unit is turned off during
cleaning, the unit will go into a Forced Rinsing mode
when power is restored, or unit is tur ned back on.
RIN
After a period of 5 minutes “FIN” wil l appear in
the display.
FIN
Generously spray the int erior oven sur faces wit h an
even coat of Combither m Liquid Oven Cleaner.
Spray all built-in components.
L E A V E D O O R S L I G H T L Y O P E N A F T E R C L E A N I N G
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P R E V E N T I V E M A I N T E N A N C E
S M A R T C L E A N
Rem o v e a l l fo o d s c r aps a n d
resi d u e f rom t h e o v e n dr a i n .
Remove shelves, side racks
and pans and wash separately.
STA N D A R D CON T R O L
DELUXE CONTROL
Easy to use Combitherm tablets, Combitherm spray cleaner or
a combination of both may be used in this cleaning program.
Wi t h t h e o v e n p o w e r o n
PRESS THE CHEF FUNCTION KEY.
Rotate the adjustment knob
until the Clean symbol is
highlighted in the display.
PRESS THE CHEF FUNCTION KEY.
THE CON TRO L WIL L AS K FOR
VER IFI CATI ON FO R A SE RIE S OF I TEM S
BEF ORE THE C LEA NIN G FU N CT I ON C A N BE
STAR TED
:
A U T O M A T I C C L E A N I N G P R O G R A M
™
( u n i t s a f t e r t o 3 / 0 9 )
RUBBE R GLOVE S MUS T BE WORN
WHEN USING THE OVEN CLEA NER
If "No" is selected, the display will indicate a
choice of Cleaning levels.
Press the up LLand down MMarrow keys or
rotate the adjustment knob to make the
appropriate selection.
PRESS THE CHEF FUNCTION KEY.
.
Heavy Normal
Clea ningClea ning?
Water Turned On?
Verify water is supplied to the oven and press
the up LLand down MMa
rrow keys or rotate
the adjustment knob to select “Y ES”.
PRESS THE CHEF FUNCTION KEY.
Rins e Only?
Press the up LLand down MMarrow keys or
rotate the adjustment knob to make the
appropriate selection.
PRESS THE CHEF FUNCTION KEY.
If "Yes" is se lecte d, th e oven will begin a 20
minute rinse cycle. Display will count down
indicating time remaining in the rinse cycle.
S E CT I ON 2 –PR EV E N TI V E M A IN T E NA N C E • C O M B I T H E R M GA S TE C H NI C A L S E RV I CE M A N U A L • 57
If "Heavy Cleaning" is selected:
Inse rt 3 Cleaner Solution
If "Nor mal Cleaning" is selected:
Inse rt 2 Cleaner Solution
Wearing rubber gloves, remove drain scree n at
bottom of oven and place the approriate
number of cleaning packets in drain opening.
Replace drain screen. Press the up LLand
down MMarrow keys or rotate the adjustment
knob to select “Y ES”.
PRESS THE CHEF FUNCTION KEY.
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P R E V E N T I V E M A I N T E N A N C E
S M A R T C L E A N
If "Yes" is se lecte d, th e display will
indicate:
Star t Advanced Clean?
Press the up LLand down MMarrow keys
or rotate the adjustment knob to select
“Y ES”.
PRESS THE CHEF FUNCTION KEY TO
CONFIRM AND START THE CLEANING
PROGRAM.
HEAVY CLE ANI NG WILL BEGIN A
135 MINUTE CLEANIN G A ND RIN SE CYCLE.
NORMAL CLEANING WI LL BEG IN A
90 MINUTE CLEANING AN D R INS E CYCLE.
DISPLAY WILL COUNT DO WN IND ICATING
TIME REMAINING.
A U T O M A T I C C L E A N I N G P R O G R A M ( C O N T I N U E D )
™
FORCED RINSING MODE:
If the cleaning cycle is stopped during cleaning, the
unit will immediately go into a Forced Rinsing mode
for 6 minutes.
If power is lost or the unit is turned off during
cleaning, the unit will go into a Forced Rinsing mode
when power is restored, or unit is tur ned back on.
Forced Rinsing
Once the Forced Rinsing is complete “Cleaning
Interrupted” will appear on the Display.
Clea ning Interrupted
At the end of the SmartClean function, the
oven will beep and the display will indicate:
Clea ning Finished
After 3 minutes, beeping will sto p. Displ ay
will continue to indicate cleaning fin ished .
Press the start / stop key to st op
the buzzer and return the oven t o
normal oper ation.
N O T E :
If "No" is selected, the cleaning program will
be exited and revert to the last cooking
program used.
Press the start/stop key to return the oven to
normal operation.
N O T E :
I FT H ED O O RI SO P E N E D
D U R I N GT H EC L E A N I N G
P R O C E S S
W I L LA P P E A RI N T H ED I S P L A Y .
A T T E N T I O N :
In a forced rinse situation, circulating water will not
reach all areas of the oven. The cleaning program
will need to be initiated again.
, “ C L O S ET H ED O O R ! ”
L E A V E D O O R S L I G H T L Y O P E N A F T E R C L E A N I N G
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P R E V E N T I V E M A I N T E N A N C E
C O N T R O L
S M A R T C L E A N
O P T I O N
Rem o v e a l l fo o d s c r aps a n d r e s idue f r o m the
ove n d r a i n. Remove shelves, side racks and pans
and wash separately.
Wearing rubber gloves, remove d rain scree n at
bottom of oven and place 3-4 cleaning packets in
drain opening. Replace drain screen.
Wi t h t h e o v e n p o w e r O N ,
rotate the C ook ing Mode dial to the
Cleaning mode position.
“CLN” will appear in the display.
CLN
A U T O M AT I C C L E A N I N G P R O G R A M
™
At the end of the SmartClean function, the oven wil l
beep and the display will indicate “FIN."
FIN
After 3 minutes, beeping will sto p. Displ ay will
contine to indicate cleaning finished. Tur n the
Cooking Mode dial to the O FF position.
FORCED RINSING MODE:
If the cleaning cycle is stopped after 10 minutes in the
cleaning cycle, the unit will immediately go into a
Forced Rinsing mode and display “RIN” for 5 minutes.
If power is lost or the unit is tur ned off during
cleaning, the unit will go into a Forced Rinsing mode
when power is restored, or unit is tur ned back on.
After 1 minute “135” will appear in the display
indicating a 135 minute cleaning cycle.
135
THE OVEN WILL BEGI N A 13 5 M INUTE
CLEANING AND RINSE CY CLE .
DISPLAY WILL COUNT DO WN IND ICATING
TIME REMAINING IN THE CL EAN ING CYCLE.
RIN
After a period of 5 minutes “FIN” wil l appear in
the display.
FIN
L E A V E D O O R S L I G H T L Y O P E N A F T E R C L E A N I N G
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SERVICE MODE, GAS RESET AND ERROR CODES
Service Mode Instructions ..............................................................61
Gas Reset.....................................................................................63
Return to Main Table of Contents ..................................................3
S E CT I ON 3 –SE RV I C E M O D E , G A S R E SE T A N D E R R O R C O D E S • C O M B I T H E R M G AS TE C H N I C A L S E RV I CE M A N U A L • 60
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SERVICE MODE, GAS RESET AND ERROR CODES
SERVICE MODE INSTRUCTIONS
The service mode is accessible on units w ith Standard or Deluxe controls only.
TO AC CES S THE SE RVIC E MOD E
PRESS THE ON/OFF POWER KEY TO THE ON POSITION.
PRESS THE COOK TE MP, TI ME AND CORE TEMP KEYS SIMULTA NEOUS LY.
The service mode will appear in the display.
or
If the unit does not hav e a core temperature key, an additional black button is located on the back
of the display board. R emove the left-hand side of the u nit or the front control panel to access it.
TO NAVIGAT E IN THE SE RVIC E MODE
R-Number Me nu
The service mode has three menus and will open in the R-N umber Menu. This menu is re ad-only
and displays the current temperature (i n Celsius), the status of all other sen sors a nd swi tches , and
the most recent errors and their time of occurren ce. Rotate the adjustment knob to view the
status values.
To view the last 10 er rors that have occurred:
• Rotate th e adjustment knob until th e parameter R38 shows in th e display.
• Press the upLLarrow to display the last 10 errors.
• Press the Chef Function ke y to togg le between the error description and the date and time
it occurre d.
• Press the down MMarrow to retur n to the parameter R38.
• Rotate the adjustment knob to scroll to another parameter.
C-Number Menu
The second menu, the C-Number Menu, is where all sensor values are set. These values are
changeable, but should only be changed under the direction of an Alto-Shaam factory representative.
Unauthorized changes can cause damage. Rotate the adjustment knob to view these values.
D-Number Menu
The third menu, the D-Number Menu , is the diagnostic menu. Here all compo nents can be
activated for 10 seconds at a time to aid in troubleshooting the oven. To test a componen t:
• Rotate the adjustment knob unti l the des ired parameter (D07 Fan [0], D12 Oven Lamp [0], etc.)
shows in the display.
• Press the up LLarrow to highlight the value [0].
• Rotate the adjustment knob to change [0] to [1]. The component will activate for 10 seconds
and then the display will re tur n to [0].
• Press the down MMarrow to retur n to the parameter with out the value highlighted.
• Rotate the adjustment knob to scroll to another parameter.
S E CT I ON 3 –SE RV I C E M O D E , GA S R E S ET A N D E R RO R C O DE S • C OM BI TH E R M GA S TE C HN I C A L S E RV I CE M A N U A L • 61
Page 62
SERVICE MODE, GAS RESET AND ERROR CODES
TO EXIT THE SER VICE MODE
PRESS THE START KEY TO EXIT FROM THE SERVICE MODE TO THE NORMAL TIME DISPLAY.
MOST COMMONLY USED PARAMETERS
R- NumbersC- NumbersD- Numbers
R01 CT C- 1 Multi-Po in t Produc t ProbeC01 No m Standby TempD01 De le te Error s
R02 CT C- 2 Multi-Po in t Produc t ProbeC02 No m Cond TempD02 Ke y Lock
R03 CT C- 3 Multi-Po in t Produc t ProbeC03 Fa n on CycleD03 De le te All Programs
R04 CT C- 4 Multi-Po in t Produc t ProbeC04 Fa n off CycleD04 Self Test BM (D is pl ay Boa rd )
R05 Ov en Temp Sensor (N-6)C05 Co nt SteamD06 Re d Fan Speed
R06 By pa ss Probe (B-5)C06 In itD07 Fa n
R07 Co nd en sa te Pro be (B-3)C07 Hu mi di ty SD08 St ea m Gen 1
R08 St ea m Generato r (B-4)C08 Hu mi di ty SSD09 Co nv ec ti on 1
R09 ST B Probe (N-8 Im me rsion Sa fe ty Pro be )C09 Hu mi di ty QuickD10 St ea m Gen 2
R10 PT-100 S in gl e-Point Pr od uct Pr ob eC10 Hu mi di ty RegD11 Co nv ec ti on 2
R13 El ec tr on ic Te mp (Co nt ro l Tem pe rature)C11 Humid it y Reg gD12 Oven Lamp
R20 Lo we r Level-Water Le ve l Prob e *C12 Bi tf ie ld 1D13 Cond C oo li ng
R21 Up pe r Level-Water Le ve l Prob e *C13 Bitfield 2D 14 Ste am Gen Fill
R23 Do or Switch *C19 PI ND28 Venting M ot or
R29 So ft wa re BM (Display Board)C23 Time BrowningD30 Smoking E le ment
R30 So ft wa re SM (Relay Board)C 24 Door Venti ngD3 1 Soleno id Valve
R31 So ft wa re KM (HACCP Board)
R38 Er ro rs (see R-Number instructions)
* For these parameters, [0] = Not Satisfied, [ 1] = Satisfied.
TO REBOOT T HE C ONT ROL
Rebooting the control ca n sometimes fi x an error code or a control t hat is frozen or confused:
PRESS AND HOLD THE ON/OFF PO WER KEY F OR FIVE S ECONDS.
The display will flash and show ST5000 for 20 secon ds, followed by “Please Wait”, and then will
retur n to the time and date.
PRESS THE ON/OFF POWER KEY M OMENTARILY.
The unit will tur n on and can be ope rated nor mally.
S E CT I ON 3 –SE RV I C E M O D E , GA S R E S ET A N D E R RO R C O DE S • C OM BI TH E R M GA S TE C HN I C A L S E RV I CE M A N U A L • 62
Page 63
SERVICE MODE, GAS RESET AND ERROR CODES
GAS RESET
There is a gas ignition f ailure light loc ated on the left hand side of the oven. The oven will
not heat when the reset l ight is o n. If the reset light is lit, fo llow the instr uctio ns below:
STOP THE COOKING PROGRAM AND PRES S THE RESET BUTTON LOCATED UNDER THE
LIGHT.
CHECK TO MAKE SURE THE GAS LINE IS CONNECTED TO THE UNIT AND THAT ITS VALVE IS
TURNED TO THE OPEN/ON POSITION.
PRESS START TO BEGIN THE COOKING PROGRAM.
IF THE LIGHT CONTINUES TO CO ME ON, RE FER TO THE TROUBLESHOOTING TREES SECTION
OF THIS MANUAL AND FOLLOW “N O IGNITION ON A CA LL FOR HEAT”.
S E CT I ON 3 –SE RV I C E M O D E , GA S R E S ET A N D E R RO R C O DE S • C OM BI TH E R M GA S TE C HN I C A L S E RV I CE M A N U A L • 63
Page 64
SERVICE MODE, GAS RESET AND ERROR CODES
ERROR CODES
When the oven malfunctions, an erro r code wi ll appear in the d isplay.
PRESS THE START KEY TO ACKNOWLEDGE THE ERROR.
The keys that begin to flash represent operational modes that ar e still u sable . Refer to Emer gency
Operation.
When the oven fault is correct ed, the C ombit herm wil l return to no rmal Ope ratio n.
ERROR CODES AND RE ASO NS
Er ror
Di splay ShowsWh en doe s the e rror o ccur?Po ssible re ason
Co de
E01Low WaterES un it s o nl y:
• Activated if ru nn ing in any mode a nd the
water le ve l drop s below the l ow level
sensor.
• Activated if in Standby mode and t he water
level dr op s belo w the l ow l ev el sensor for
3 minutes.
E02Control Temp Hi ghAc ti va te d if the te mperature of the electrical
control is highe r than 176°F (8 0° C) for 20
seconds.
E03Fan Ma lf un ct ionActivated if t he motor protectio n switch is
tripped.
E04Aux Fa n FaultAuxiliary fa n malf un ct io n.• Control setup p ro gramming e rr or.
E11Excess O ve n Tem pActivated if th e oven cavity temperature is
higher t ha n 572°F (300°C) for 2 5 seconds.
E13Excess S te am Gen TempE S u ni ts on ly:
Activated if the temperature of t he ste am
generator pr obe (B -4 ) is higher t ha n 24 8° F
(120°C) fo r 26 seconds.
ES i/ ESG u nits only:
• Activated if th e positi on of personality
jumper o n X-3 is in co rr ect.
• Activated if th e positi on of B-4 j um pe r is
incorrect.
• Wate r supply is s hu t off.
• Low w ater p re ss ure.
• Steam generator d rain c ap is off o r loose.
• Drain pump is not sealing.
• Faulty or s ca le d water level probe.
• Faulty or p lu gg ed solen oi d valve assembly.
• Wiring or c on ne ction is su e.
• Cooling fan n ot operati ng .
• Unit is nex t to a heat producing source
(there i s less than 2 0" cle ar an ce for the
control si de ).
• Exhaust hood is not operating (if ap pl ic able).
• Motor rotation is backw ar ds .
• Incorrect power t o the unit.
• Connection problem at X -7 plug on th e relay
board pi ns 3-4.
• Contact factory.
• Connection issue with o ve n temperat ur e
sensor.
• Convection element contactor is stuck .
• Faulty oven t em pe ra ture s en so r.
• Problem with wa te r leve l probe.
• Scale b uild-up in si de ste am generator.
• Steam e lement c on ta ctor i s stuck.
• Connection issue wi th B-4 probe.
• Faulty B-4 pr ob e.
• Jumper on X -3 is improperly positioned.
Should b e between 2-8 o r, if i t is a smok er,
between 2- 9.
• Jumper on X -6 a is improperly positioned.
Should b e between 13-14.
S E CT I ON 3 –SE RV I C E M O D E , GA S R E S ET A N D E R RO R C O DE S • C OM BI TH E R M GA S TE C HN I C A L S E RV I CE M A N U A L • 64
Page 65
SERVICE MODE, GAS RESET AND ERROR CODES
ERROR CODES AND RE ASO NS ( continued)
Er ror
Di splay ShowsWh en doe s the e rror o ccur?Po ssible re ason
Co de
E15Excess C on de nsate TempActiva te d if the te mp er ature of the
condensate p robe ( B- 3) is higher th an 2 12 °F
(100°C) fo r 26 seconds.
E21Oven P ro be FaultActivated if oven temperature probe (N-6) i s
interrupted.
E22Core Temp P ro be FaultActivated if co ok in g in Core Temp m od e and
the CT C sensor measures an ex ce ss iv e
temperature.
E23Steam Ge n Probe FaultES u ni ts on ly :
Activated if the steam generator pr obe (B -4 )
is int er ru pt ed.
ES i/ ESG u nits only:
• Activated if th e positi on of personality
jumper o n X-3 is in co rr ect.
• Activated if th e positi on of B-4 j um pe r is
incorrect.
E24Bypass P ro be Fau ltActivated if th e bypass probe (B-5) is
interrupted.
• Water supply is s hu t off.
• Faulty or plu gg ed solenoi d valve (Y-2).
• Connection issue at B-3 probe.
• Faulty B-3 pr ob e.
• Connection issue at N-6 probe.
• Faulty N-6 pr ob e.
• CTC s en sor is damaged.
• 4-point CTC s en so r is activated, but 1 -p oint
CTC se ns or is installed.
• Cable connection of CTC sensor is da ma ge d.
• Hardware problem on c on tr ol uni t (SM).
• Connection issue at B-4 probe.
• Faulty B-4 pr ob e.
• Jumper on X -3 is improperly positioned.
Should b e between 2-8 o r, if i t is a smok er,
between 2- 9.
• Jumper on X -6 a is improperly positioned.
Should b e between 13-14.
• Connection issue at B-5 probe.
• Faulty B-5 pr ob e.
E25Condensate P robe F au ltActivated if th e conden sa te probe (B-3) is
interrupted.
E26Steam Ge n Safety Probe
Fault
E27Excess S te am Gen Safety
Temp
E29Probe Sh or t to FrameActivated i f one or mo re of the t emperature
Activated if the steam generator sa fety p ro be
(N-8) is interrupt ed .
ES un it s o nl y:
Activated if the steam generator sa fety p ro be
(N-8) me as ur es a temperature in e xcess of
266°F (1 30 °C ).
ES i/ ESG u nits only:
• Activated if th e positi on of N-8 j um pe r is
incorrect.
sensors we re con ne ct ed to GND f or 5
seconds.
• Connection issue at B-3 probe.
• Faulty B-3 pr ob e.
• Connection issue at N-8 probe.
• Faulty N-8 pr ob e.
• Problem with wa te r leve l probe.
• Scale b uild-up in si de ste am generator.
• Steam e lement c on ta ctor i s stuck.
• Connection issue wi th N-8 probe.
• Faulty N-8 pr ob e.
• Jumper on X -6 b is improperly positioned.
Should b e between 1-2.
• Connection issue at any of t he tem pe ra tu re
sensors.
• Tempe ra tu re senso r shorted to
ground/faulty.
S E CT I ON 3 –SE RV I C E M O D E , GA S R E S ET A N D E R RO R C O DE S • C OM BI TH E R M GA S TE C HN I C A L S E RV I CE M A N U A L • 65
Page 66
SERVICE MODE, GAS RESET AND ERROR CODES
ERROR CODES AND RE ASO NS ( continued)
Er ror
Di splay ShowsWh en doe s the e rror o ccur?Po ssible re ason
Co de
E34DE (Dr ai n) Pump FailureActivated if wa te r level did n ot dro p below
the lo w level sensor in the generator during a
steam ge ne ra tor fl us h.
E35Venting ErrorAc ti va ted wh en vent switch re ads op en (vent
closed) wh en it should be clo se d (vent open),
or whe n it reads cl os ed (ve nt open) when i t
should b e open (vent cl osed).
E36Steam Temp Hi ghActivated when o ve n temp er at ur e pr ob e (N-6)
measures a tempe ra tu re in excess of 395 °F
(202°C) wh en runni ng in Steam m od e.
E80ID Err orC ontrol i s unable to d etect wh et he r unit is
gas or electric.
E81Program Me mo ry E rr orTemperat ur e value or ti me value of a pro gr am
step i s not allowed.
E82WP Err orTemperature value or ti me value of c ur rent
cooking al go rithm is out of a ll ow ed array .
• Problem with wa te r leve l probe.
• Scale b uild-up in si de ste am generator.
• Scale p lugging dr ai n pump .
• Faulty drain pu mp .
• Alignment issue b etween m ot or cam and
micro sw it ch .
• Connection issue at micro switch.
• Connection issue at contr ol .
• Faulty vent s wi tc h.
• Faulty vent m ot or.
• Wate r supply is s hu t off while u nit is running
in Ste am or Combi m od e.
• Plugged or fa ul ty Y-1 solenoi d.
• Obstruction between Y-01 solenoid and
water in le t.
• Connection issue at X-3 personality jumper.
• Faulty control.
• Program was g en er ated i n °C and co nt ro l
has be en switched to °F.
• Program was g en er ated i n °F and co nt ro l
has be en switched to °C .
• Delete program an d rein st al l.
E83Algo E rr orCooking al go rithm se nt by operating module
(BM) i s unknown to co nt rol un it (SM).
E96Connection E rrorNo or b ad com mu ni ca tion b et we en contr ol
unit ( SM ) and operating module (B M) .
S E CT I ON 3 –SE RV I C E M O D E , GA S R E S ET A N D E R RO R C O DE S • C OM BI TH E R M GA S TE C HN I C A L S E RV I CE M A N U A L • 66
• Software versions of co nt ro l unit and
operating mo dule a re incompa ti bl e.
• Software error in opera ti ng module.
• Connection issue at rib bo n cable on di sp lay
or rel ay board.
• Faulty ribbon c ab le .
• Software versions of co nt ro l unit and
operating mo dule a re incompa ti bl e.
Page 67
SERVICE MODE, GAS RESET AND ERROR CODES
EMERGENCY OPERATION
In the event of an erro r code, the Combitherm may be operated on a limited basis. Error co nditi ons under
which continued operation can be conducted are indic ated by “ Yes” in the chart sh own below.
When the oven malfunctions, an erro r code wi ll appear in the d isplay.
PRESS THE START KEY TO ACKNOWLEDGE THE ERROR.
The keys that begin to flash represent operational modes that ar e still u sable .
SELECT AND PRESS ONE OF THE COOKING M ODES INDICATED.
The oven control wi ll only respond to the mode keys that are fl ashin g.
SET THE OVEN CONTROLS AS IF OPERATING UNDE R NORMAL CIRCUMSTANCES.
Depending on the error code invol ved, oven function, such as temperature range, may be limit ed.
PRESS THE START KEY TO BEGIN THE COOKING PROC ESS.
PRESS THE START KEY WHEN THE TIMER EXPIRES.
When the oven fault is correct ed, the C ombit herm wil l return to no rmal Ope ratio n.
CONTINUED OPERATION UNDER ER ROR CON DITIONS
Er ror
Co de
E01Lo w Wa te rYesN/ANoNoTo 365 °FNo
E02Co nt rol Temp Hi ghYesYesYesTo 2 84 °FTo 284°FTo 284°F
E03Fa n Malfun ct io nN/AN/ A————
E04Au x Fan FaultYesYesYesTo 284°FTo 28 4°FTo 284°F
E11Ex ce ss Ove n Tem pYesYesNoNoNoNo
E13Ex ce ss Ste am Gen TempYesN/ANoNoNoNo
E15Ex ce ss Con de ns at e Tem pYesYesNoNoTo 3 56 °FNo
E21Ov en Pro be FaultYesYes212°F onlyNoNoNo
E22Co re Temp Pro be FaultYe sYesYesYe sYesYes
E23St ea m Gen Probe FaultYesN/AYesYesYesYes
E24By pa ss Pro be FaultYesYesTo 210°FNoYesNo
E25Co nd ensate P ro be Fau ltYesYesYesTo 356°FTo 35 6°FTo 320°F
E26St ea m Gen Safety Probe Fa ultYesN/AYesYe sYesYes
E27Ex ce ss Ste am Gen Safety TempYesN/ ANoNoN oNo
E29Pr obe Sh or t to FrameYesYe sNoNoNoNo
E34DE (Drain) Pump FailureYesN/AYesYesYesYes
E35Venting E rrorYesYesYesYesYesYes
E36St ea m Tem p HighN/AYesN oNoYesNo
E80ID ErrorYesYesYe sYesYesYes
E81Pr ogram Me mo ry ErrorYesYesYesYesYesYes
E82WP ErrorYesYesYesYesYesYes
E83Al go ErrorYesYesYesYesYesYes
E96Co nn ection E rr orYe sYesNoNoNoNo
Di splay ShowsESES i/
ES G
St eam
Mo de
Co mbinatio n
Mo de
Co nvection
Mo de
Re therm
Mo de
S E CT I ON 3 –SE RV I C E M O D E , GA S R E S ET A N D E R RO R C O DE S • C OM BI TH E R M GA S TE C HN I C A L S E RV I CE M A N U A L • 67
Page 68
T R O U B L E S H O O T I N G T R E E S
ESG Units
Unit Dead — No Display and No Operation ...............................69
Unit Does Not Run When Start Is Pressed ..................................70
No Motor Operation .................................................................71
No Steam Production in Steam Mode ........................................73
No Heat in Convection Mode ....................................................74
No Steam in Combination Mode ...............................................75
No Convection Heat in Combination Mode ................................76
No Smoke Production ...............................................................77
Return to Main Table of Contents ..................................................3
NOTE: Troubleshooting Guides reflec t all counter top models. When wo rking on a
20.20 there are additional elements, motors, and cont actor s. The following
components are wired to operate together on a 20. 20:
• K-41 and K-43 Conv ectio n Element Contactors
• K-42 and K-44 Conv ectio n Element Contactors
• K-51 and K-71 High Speed Motor Contactors
• K-52 and K-72 Low S peed M otor C ontactors
S E C T I O N 4 –TR O U B L E S H O O T I N G T R E E S • C O M B I T H E R M G A S T E C H N I C A L S E R V I C E M A N U A L • 68
Page 69
T R O U B L E S H O O T I N GT R E E S
E S G — U n i t D e a d — N o D i s p l a y a n d N o O p e r a t i o n
Is power connected to
the unit?
Yes
Is there correct voltage at
No
the power source?
Yes
Is there correct voltage at
the main terminal block?
Install power to
unit/plug in.
No
Check breaker, reset if
necessary.
Repair wiring issue between terminal
block and fuses.
Repair wiring issue
between F-10 and F-1/2
fuses.
Replace faulty power
supply.
Replace/Repair faulty
plug/cord/wiring.
No
Test F-1/2, replace
blown fuse(s).
Repair wiring issue between
F-1/2 fuse block and the
130/132 terminal blocks.
No
No
Is there correct voltage at
terminals 34/36 at the
F-1 and F-2 fuses?
No
No
Is there 12 VDC across
terminals 312/313 at the
power supply?
No
Yes
Yes
Yes
Yes
Is there 12 VDC across pins
Yes
Is there correct
voltage at terminals
62/64 at the F-10
fuses?
Is there correct voltage
across terminals 33/35 at
the F-1/2 fuse block?
Yes
Is there voltage across
terminals 310/311 at
the power supply?
1/3 at the X-3 plug on the
relay board?
Correct wiring issue
between supply and
control.
Correct/Replace as
needed.
Replace faulty board package.
S E C T I O N 4 –TR O U B L E S H O O T I N G T R E E S • C O M B I T H E R M G A S T E C H N I C A L S E R V I C E M A N U A L • 69
No
No
Is the ribbon cable secured
at both the relay and display
Yes
board?
Yes
Page 70
T R O U B L E S H O O T I N GT R E E S
E S G — U n i t D o e s N o t R u n W h e n S t a r t I s P r e s s e d
Does the cycle light
come on?
Check start button for free
movement, make sure no other
control buttons are stuck.
Repair all loose connections.
No
Close door or if closed
check for faulty switch,
magnet, or wiring.
Reset and test operation.
Tighten or replace if necessary.
No
Yes
Is the door switch
satisfied?
No
Yes
Is the motor protection
switch in the start
position?
No
Yes
Is the ribbon cable
secured between both
boards?
No
Yes
Are all connections on
relay board secure?
Reboot control by pressing/holding the power button
for 5 seconds. If unsuccessful contact Alto-Shaam
S E C T I O N 4 –TR O U B L E S H O O T I N G T R E E S • C O M B I T H E R M G A S T E C H N I C A L S E R V I C E M A N U A L • 70
Technical Service.
Yes
Page 71
T R O U B L E S H O O T I N GT R E E S
E S G — N o M o t o r O p e r a t i o n
Is the K-51 contactor
being energized?
Yes
Is K-51 pulling in?
Determine if A-1 or A-2 is
missing and correct.
No
Replace faulty K-51
contactor.
Repair wiring issue between main power
terminal block and fuses.
Replace blown fuse(s) and test.
Repair wiring issue between
Repair wiring issue between
F-51/52.
No
fuses and F-52 MP switch.
Yes
Is there voltage across
62/64 at the F-10 fuses?
No
Yes
Is there voltage across
63/65 at the F-10 fuses?
No
Yes
Is there voltage across
1/3 at the F-52 MP
switch?
No
Yes
Is there voltage across
1/3 at the F-51 MP
switch?
No
Yes
Reset tripped switch (start button in) and test again. If still
Ensure wiring out of the contactor is correct to the capacitors and through the motor wire harness
S E C T I O N 4 –TR O U B L E S H O O T I N G T R E E S • C O M B I T H E R M G A S T E C H N I C A L S E R V I C E M A N U A L • 71
no voltage replace faulty MP switch.
Repair wiring issue between F-52
and K-51.
Replace faulty contactor.
plug. Test capacitor and replace if needed. If all checks ok replace motor.
No
Is there voltage across
1/3 at the K-51
contactor?
No
Yes
No
Is there voltage across
2/4 out of the F-51 MP
Yes
Is there voltage across
switch?
2/4 out of the K-51
contactor?
Yes
Page 72
T R O U B L E S H O O T I N GT R E E S
E S G — N o I g n i t i o no na C a l l f o r H e a t
( K - 2 C o n t a c t o r P u l l e d I n )
Determine which leg is
missing and correct.
Replace faulty transformer.
Repair wiring issue between K-2-2
and ignition control plug.
Reset the ignition control
and continue testing.
Is there voltage at the
blower motor?
No
Replace faulty fan motor.
Replace faulty gas valve
and test.
Is there voltage to the
transformer across
terminals 47/48?
No
Repair wiring issue between 129 terminal
block and ignition control plug.
No
No
Is the ignition failure reset
light off?
Yes
No
Yes
Is the combustion fan motor
running?
1. Reseat ignition control on valve and reseat plug on
control. Test.
2. Check ignition cable, reseat in ignition control.
Replace if necessary.
3. Inspect igniter assembly. Replace if necessary.
4. Replace ignition control if necessary.
No
Yes
Is there voltage out of the
No
transformer across terminal
Is there voltage across pin
Yes
pressure switch satisfied
Yes
200 and 20?
10/11 on the ignition
control?
Is the combustion fan
(200V to Ground on all
posts)?
No
Is the valve opening?
Is there voltage across pin
4/11 on the ignition control?
Yes
No
Is there voltage out of the
K-2 contactor at terminal 2?
Yes
No
Determine which leg is missing and correct:
Terminal 143 is supplied from the transformer.
Terminal 144 is supplied from pin 7 on the
ignition control on a call for heat.
No
Yes
Is there a spark?
Correct and test.
No
Is the incoming gas
pressure within spec?
Yes
Yes
Is there voltage at terminal 1
at the K-2 contactor?
Yes
Repair wiring issue
between 129 terminal and
K-2-1 contact.
Replace faulty K-2
contactor.
1. Ensure fan is running properly.
2. Inspect air hose for damage or
kinks.
3. Inspect switch, replace if needed.
Yes
Is the gas valve being
energized?
Yes
Reseat ignition control on
valve and reseat plug in
ignition control and test. If
valve is still not energized,
replace faulty ignition control.
No
No
Set correct pressure and test. If unable to adjust pressure
1. Inspect flame sensing rod for integrity. Replace if necessary.
2. Inspect flame sensing wire for continuity. Replace if necessary.
3. Reseat flame sensing wire in control.
4. Reseat ignition control on valve.
5. Reseat ignition control plug.
6. If burner is still not staying lit, proceed to next question.
Replace faulty ignition
control and test.
S E C T I O N 4 –TR O U B L E S H O O T I N G T R E E S • C O M B I T H E R M G A S T E C H N I C A L S E R V I C E M A N U A L • 72
replace faulty valve.
Yes
No
Check for the following:
1. Plugged or obstructed burner
orifice.
2. Obstructed exhaust flue.
3. Faulty igniter assembly.
No
Next
Does ignition lock out
reset come on?
Yes
Is the outlet gas pressure
set properly?
No
Is the burner staying lit?
No
Yes
Is the burner lighting?
Yes
Determine cause of ignition trial
Start/Stop:
1. K-2 dropping out or poor
connection at K-2.
2. Pressure switch dropping out.
– Faulty combustion motor
– Kinked or damaged air hose
– Faulty pressure switch
– Poor connect at IC Control
Pins 4, 10 or 9
Page 73
T R O U B L E S H O O T I N GT R E E S
E S G — N o S t e a m P r o d u c t i o n i n S t e a m M o d e
Troubleshoot “Does Not Run
When Start Is Pressed”.
Troubleshoot “No Motor Operation”.
Determine which leg is missing and
correct.
A-1 is L-1 supplied from K-1-4.
A-2 is N/L-2 supplied from the N-7
high limit.
Replace faulty contactor.
Troubleshoot “No Ignition on a Call
for Heat.”
Determine which leg of power is missing and correct.
A-1 is L-1 supplied from K-1-2.
A-2 is N/L-2 supplied from the X-11-130-2 terminal block.
Does the unit run when start
is pressed?
No
No
If it should be below set point, test/inspect
B-5 probe and wiring. Replace if necessary.
No
Is the K-2 contactor pulling
No
in?
Yes
Is the motor running?
Is the K-2 contactor being
Yes
Yes
Is the burner igniting?
No
energized?
No
Correct and test.
Is the B-5 probe below its
set point?
Yes
Yes
Is the K-1 contactor pulling
Yes
Yes
Is the Y-1 solenoid being
in?
No
Replace faulty
contactor.
energized?
No
Is the K-1 contactor being
energized?
Yes
No
Determine which leg is missing and
correct.
A-1 is L-1 supplied from X-1 pin 2 on
the relay board.
A-2 is N/L-2 supplied from the
X-11-130-2 terminal block.
Yes
No
Is there water connected to
the oven and turned on?
Clean out flow control valve and
test.
No
Clean out clogged pressure box.
Repair hose between pressure box and
The oven should begin producing steam in
Is there water flowing out of
the control valve into the
pressure box?
No
oven.
3-5 minutes.
Is there water flowing into
the flow control valve?
Yes
Yes
Is there water flowing out of
the pressure box?
Yes
No
Test solenoid for opening.
If solenoid is not opening,
replace.
If solenoid is opening find and
repair plugged or damaged hose.
Yes
No
Is there water flowing into
the oven?
Yes
S E C T I O N 4 –TR O U B L E S H O O T I N G T R E E S • C O M B I T H E R M G A S T E C H N I C A L S E R V I C E M A N U A L • 73
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T R O U B L E S H O O T I N GT R E E S
E S G — N o H e a t i n C o n v e c t i o n M o d e
Does the unit run when start
is pressed?
Troubleshoot “Does Not Run When Start Is
Pressed”.
Troubleshoot “No Motor Operation”.
If it should be below set point, test/inspect
N-6 wiring. Replace if necessary.
Determine which leg is missing and correct.
A-1 is L-1 supplied from the 133 terminal
block.
A-2 is N/L-2 and is supplied from the N-7 high
limit.
Replace faulty
contactor.
No
Yes
No
No
Yes
Is the motor running?
No
Is the N-6 probe below
Is the K-2 contactor being
energized?
Is the K-2 contactor pulling
Yes
set point?
No
Yes
in?
Yes
Troubleshoot “No Ignition on a Call for Heat”.
Heat should be produced in the oven and K-2 contactor should cycle on the N-6 probe.
S E C T I O N 4 –TR O U B L E S H O O T I N G T R E E S • C O M B I T H E R M G A S T E C H N I C A L S E R V I C E M A N U A L • 74
No
Is the burner igniting?
Yes
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T R O U B L E S H O O T I N GT R E E S
E S G — N o S t e a m i n C o m b i n a t i o n M o d e
Does the unit run when start
No
Troubleshoot “Does Not Run
When Start Is Pressed”.
test/inspect B-5 probe and wiring.
Determine which leg is missing and correct.
A-1 is L-1 supplied from X-1 pin 2 on the relay board.
A-2 is N/L-2 supplied from the X-11-130-2 terminal block.
Determine which leg is missing and correct.
A-1 is L-1 supplied from K-1-4.
A-2 is N/L-2 supplied from the N-7 high limit.
Troubleshoot “No Ignition on a Call for Heat”.
is pressed?
Troubleshoot “No Motor
If it should be below set point,
Replace if necessary.
Yes
Operation”.
No
Replace faulty contactor.
No
Replace faulty contactor.
No
Is the motor running?
No
Is the K-1 contactor being
energized?
Is the K-2 contactor being
energized?
Is the burner igniting?
Yes
Yes
Is the B-5 probe below its
set point?
No
Yes
No
No
Is the K-1 contactor pulling
Yes
Yes
Is the K-2 contactor pulling
Yes
in?
in?
Determine which leg of power is missing and correct.
A-1 is L-1 supplied from K-1-2.
A-2 is N/L-2 supplied from the X-11-130-2 terminal block.
Correct and test.
Replace.
Find and repair plugged or damaged
hose.
Repair hose between pressure box and oven.
The oven should begin producing steam in 3-5 minutes, cycle off and switch to
Solenoid not
opening
Solenoid
opening
Clean out flow control valve and test.
convection.
No
Test solenoid for opening.
No
Clean out clogged pressure box.
No
No
Is there water connected to
the oven and turned on?
No
Is there water flowing out of
the control valve into the
pressure box?
No
Is there water flowing into
the oven?
Yes
Yes
Is the Y-1 solenoid being
energized?
Yes
Yes
Is there water flowing into
the flow control valve?
Yes
Yes
Is there water flowing out of
the pressure box?
Yes
S E C T I O N 4 –TR O U B L E S H O O T I N G T R E E S • C O M B I T H E R M G A S T E C H N I C A L S E R V I C E M A N U A L • 75
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T R O U B L E S H O O T I N GT R E E S
E S G — N o C o n v e c t i o nH e a t i n C o m b i n a t i o n M o d e
Does the unit run when start
is pressed?
Troubleshoot “Does Not Run
When Start Is Pressed”.
Determine which leg is missing and correct.
A-1 is L-1 supplied from the 133 terminal block.
A-2 is N/L-2 supplied from the N-7 high limit.
No
Troubleshoot “No Motor
Operation”.
B-5 (steam) must satisfy first before switching to convection
heat. If this is the issue, troubleshoot “No Steam in
If it should be below set
point, test/inspect N-6
wiring. Replace if
necessary.
Combination Mode”.
Replace faulty contactor.
Yes
Is the motor running?
No
No
Yes
No
Yes
Is the K-2 contactor being
energized?
Is the B-5 probe satisfied?
Yes
Is the N-6 probe below set
point?
No
Yes
Is the K-2 contactor pulling
No
in?
Yes
Troubleshoot “No Ignition on a Call
Heat should be produced in the oven and K-2 contactor should cycle on the
for Heat”.
N-6 probe.
NOTE: If at any time the B-5 bypass probe falls below set point, the unit will drop
out of the convection mode and begin steam production running in the steam mode.
Steam (B-5 probe) always takes priority over convection (N-6 probe).
S E C T I O N 4 –TR O U B L E S H O O T I N G T R E E S • C O M B I T H E R M G A S T E C H N I C A L S E R V I C E M A N U A L • 76
Is the burner igniting?
No
Yes
Page 77
T R O U B L E S H O O T I N GT R E E S
E S G — N o S m o k e P r o d u c t i o n
Is the smoke symbol
displayed in the LCD?
No
Follow set up procedures for
smoke function and test.
1. Soak chips
2. Load tray
3. Install in oven
4. Test
The smoke elements will not be energized when the vent is open. If it
should be closed, troubleshoot the vent motor and vent switch.
Determine which leg is missing and correct.
Pin 7 is L-1 supplied from X-9 pin 2 on the relay board.
Pin 8 is N/L-2 supplied from the X-11-130-1 terminal.
Yes
No
Troubleshoot “Does Not Run
When Start Is Pressed”.
Replace faulty relay.
Is the chip tray installed with
pre-soaked smoke chips?
No
Is the smoke relay coil
energized (pins 7-8)?
No
Yes
Does the cycle light come
on when pressed?
No
Yes
Yes
No
Yes
Is the vent in the closed
position?
Are the relay contacts
closing?
Yes
Determine which leg is missing and correct.
L-1 power is supplied to each smoke element directly from the F-10
fuse terminal 63.
N/L-2 is supplied from relay pins 5-6.
Pin 5 to SK element 2.
Pin 6 SK element 1.
Replace faulty element(s).
Smoke production should begin in the oven.
No
Is there voltage at each
Are the elements drawing
power (approximately
No
element?
Yes
1A to 2A)?
Yes
S E C T I O N 4 –TR O U B L E S H O O T I N G T R E E S • C O M B I T H E R M G A S T E C H N I C A L S E R V I C E M A N U A L • 77
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Combitherm parts
Rear Service Parts — Auto Clean, SmartClean ............................... 79
Left-Hand Side Service Parts — Auto Clean, SmartClean ................ 80
Rear and Left-Hand Side Service Parts — CombiClean ................... 81