This manual provides basic information about the machine. Instructions and suggestions are
given covering its operation and care.
The illustrations and specifi cations are not binding in detail. We reserve the right to make
changes to the machine without notice, and without incurring any obligation to modify or provide new parts for machines built prior to date of change.
DO NOT ATTEMPT to operate the machine until instructions and safety precautions in this
manual are read completely and are thoroughly understood. If problems develop or questions
arise in connection with installation, operation, or servicing of the machine, contact Stoelting.
stoeltingfoodservice.com
Stoelting Foodservice Equipment
502 Highway 67
Kiel, WI 53042-1600
U.S.A.
Read and understand the entire manual before
operating or maintaining Stoelting equipment.
This manual provides the operator with information
for the safe operation and maintenance of Stoelting
equipment. As with any machine, there are hazards
associated with their operation. For this reason safety
is emphasized throughout the manual. To highlight
specifi c safety information, the following safety defi ni-
tions are provided to assist the reader.
The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols, and
their explanations, deserve your careful attention
and understanding. The safety warnings do not by
themselves eliminate any danger. The instructions
or warnings they give are not substitutes for proper
accident prevention measures.
If you need to replace a part, use genuine Stoelting
parts with the correct part number or an equivalent
part. We strongly recommend that you do not use
replacement parts of inferior quality.
Safety Alert Symbol:
This symbol Indicates danger, warning or caution.
Attention is required in order to avoid serious personal injury. The message that follows the symbol
contains important information about safety.
Signal Word:
Signal words are distinctive words used throughout
this manual that alert the reader to the existence and
relative degree of a hazard.
WARNING
The signal word “WARNING” indicates a potentially
hazardous situation, which, if not avoided, may result
in death or serious injury and equipment/property
damage.
CAUTION
The signal word “CAUTION” indicates a potentially
hazardous situation, which, if not avoided, may result
in minor or moderate injury and equipment/property
damage.
CAUTION
The signal word “CAUTION” not preceded by the
safety alert symbol indicates a potentially hazardous
situation, which, if not avoided, may result in equipment/property damage.
NOTE (or NOTICE)
The signal word “NOTICE” indicates information or
procedures that relate directly or indirectly to the
safety of personnel or equipment/property.
6.1 Decals and Lubrication ...............................................................................23
6.2 Auger Shaft and Faceplate Parts ...............................................................24
SECTION 1
INTRODUCTION
1.1 DESCRIPTION
The Stoelting E131I and F131I counter machines are gravity fed. The machines are equipped with fully automatic
controls to provide a uniform product. They are designed
to operate with almost any type of commercial soft serve
or non-dairy mixes available, including: ice milk, ice cream,
yogurt, and frozen dietary desserts.
This manual is designed to assist qualifi ed service per-
sonnel and operators in the installation, operation and
maintenance of the Stoelting E131I and F131I gravity
machines.
1.2 SPECIFICATIONS
Figure 1-1 E131I / F131I Machine
Figure 1-2 Specifi cation
Owner’s Manual #513536-5 1 E131I/F131I Model Machines
1.2 SPECIFICATIONS (CONTINUED)
Model E131I
DimensionsMachinewith crate
width22’’ (55,9 cm)28’’ (71,1 cm)
height34-3/4’’ (88,3 cm)40-1/4’’ (102,2 cm)
depth28-1/2’’ (72,4 cm)35-1/4’’ (89,5 cm)
Weight370 lbs (167,8 kg)450 lbs (204,1 kg)
Electrical1 Phase, 208-240 VAC, 60Hz
running amps12A
connection typeNEMA6-20P power cord provided
International Option1 Phase, 220-240 VAC, 50Hz
Compressor8,600 Btu/hr (R-404A)
Drive MotorTwo - 3/4 hp
Air FlowAir cooled units require 3” (7,6 cm) air space on both sides
Plumbing FittingsWater cooled units require 3/8” N.P.T. water and drain fi ttings.
Hopper VolumeTwo - 3 gallon (11,35 liters)
Freezing Cylinder
Volume
Two - 0.65 gallon (2,46 liters)
Model F131I
DimensionsMachinewith crate
width22’’ (55,9 cm)28’’ (71,1 cm)
height34-3/4’’ (88,3 cm)40-1/4’’ (102,2 cm)
depth28-1/2’’ (72,4 cm)35-1/4’’ (89,5 cm)
Weight385 lbs (174,6 kg)470 lbs (213,1 kg)
Electrical1 Phase, 208-240 VAC, 60Hz
running amps12A
connection typeNEMA6-20P power cord provided
International Option1 Phase, 220-240 VAC, 50Hz
Compressor12,000 Btu/hr (R-404A)
Drive MotorTwo - 3/4 hp
Air FlowAir cooled units require 3” (7,6 cm) air space on both sides
Plumbing FittingsWater cooled units require 3/8” N.P.T. water and drain fi ttings.
Hopper VolumeTwo - 3 gallon (11,35 liters)
Freezing Cylinder
Volume
Two - 0.85 gallon (3,22 liters)
Owner’s Manual #513536-5 2 E131I/F131I Model Machines
SECTION 2
INSTALLATION INSTRUCTIONS
2.1 SAFETY PRECAUTIONS
Do not attempt to operate the machine until the safety
precautions and operating instructions in this manual are
read completely and are thoroughly understood.
Take notice of all warning labels on the machine. The labels have been put there to help maintain a safe working
environment. The labels have been designed to withstand
washing and cleaning. All labels must remain legible for
the life of the machine. Labels should be checked periodically to be sure they can be recognized as warning labels.
If danger, warning or caution labels are needed, indicate
the part number, type of label, location of label, and quantity
required along with your address and mail to:
STOELTING
ATTENTION: Customer Service
502 Hwy. 67
Kiel, Wisconsin 53042
2.2 SHIPMENT AND TRANSIT
The machine has been assembled, operated and inspected
at the factory. Upon arrival at the fi nal destination, the
entire machine must be checked for any damage which
may have occurred during transit.
With the method of packaging used, the machine should
arrive in excellent condition. THE CARRIER IS RESPONSIBLE FOR ALL DAMAGE IN TRANSIT, WHETHER
VISIBLE OR CONCEALED. Do not pay the freight bill
until the machine has been checked for damage. Have
the carrier note any visible damage on the freight bill. If
concealed damage and/or shortage is found later, advise
the carrier within 10 days and request inspection. The
customer must place claim for damages and/or shortages
in shipment with the carrier. Stoelting, Inc. cannot make
any claims against the carrier.
2.3 MACHINE INSTALLATION
WARNING
Installation must be completed by a qualifi ed
electrician/refrigeration specialist.
Incorrect installation may cause personal injury,
severe damage to the machine and will void factory warranty.
Figure 2-1 Space and Ventilation Requirements
Place a bubble level on top of the machine at each
corner to check for level condition. If adjustment
is necessary, level the machine by turning the
bottom part of each leg in or out.
C. The machine has a base gasket that must be
installed. Separate the gasket and install it with
the seam to the back. Make sure the angled side
of the gasket is facing up.
D. Correct ventilation is required. The right side of
the machine is the air intake and left side is the
discharge. Both sides must have 3” clearance.
CAUTION
Failure to provide adequate ventilation will void
warranty.
E. Place the Main Freezer Power Off/On switch in
the OFF position.
F. Connect the power cord to the proper power
supply. The plug connected to the machine is
a NEMA 6-20P. Check the nameplate on your
machine for proper supply. The unit must be
connected to a properly grounded receptacle. The
electrical cord furnished as part of the machine
has a three prong grounding type plug. The
use of an extension cord is not recommended,
if necessary use one with a size 12 gauge or
heavier with ground wire. Do not use an adapter
to circumvent the grounding requirement.
Installation of the machine involves moving the machine
close to its permanent location, removing all crating, setting in place, assembling parts, and cleaning.
A. Uncrate the machine.
B. Accurate leveling is necessary for correct drainage
of machine barrel and to insure correct overrun.
Owner’s Manual #513536-5 3 E131I/F131I Model Machines
Do not alter or deform electrical plug in any way.
Altering the plug to fi t into an outlet of dif ferent con-fi guration may cause fi re, risk of electrical shock,
product damage and will void warranty.
WARNING
Owner’s Manual #513536-5 4 E131I/F131I Model Machines
SECTION 3
INITIAL SET-UP AND OPERATION
3.1 OPERATOR’S SAFETY PRECAUTIONS
SAFE OPERATION IS NO ACCIDENT; observe these
rules:
A. Know the machine. Read and understand the
Operating Instructions.
B. Notice all warning labels on the machine.
C. Wear proper clothing. Avoid loose fi tting garments,
and remove watches, rings or jewelry that could
cause a serious accident.
D. Maintain a clean work area. Avoid accidents by
cleaning up the area and keeping it clean.
E. Stay alert at all times. Know which switch, push
button or control you are about to use and what
effect it is going to have.
F. Disconnect power for maintenance. Never
attempt to repair or perform maintenance on the
machine until the main electrical power has been
disconnected.
G. Do not operate under unsafe operating conditions.
Never operate the machine if unusual or excessive
noise or vibration occurs.
3.2 OPERATING CONTROLS AND INDICATORS
Before operating the machine, it is required that the operator know the function of each operating control. Refer
to Figure 3-1 for the location of the operating controls on
the machine. For the information regarding error codes
displayed on the control panel, refer to the troubleshooting
section of this manual.
WARNING
High voltage will shock, burn or cause death. The
OFF-ON switch must be placed in the OFF position
prior to disassembling for cleaning or servicing. Do
not operate machine with panels removed.
Freezing Cylinder
Main Freezer
Power Off/On
Dispense
Rate Adjustor
IntelliT ec™ Control
(See Figure 3-2)
Figure 3-1 Machine Controls
Owner’s Manual #513536-5 5 E131I/F131I Model Machines
Off/On Switch
A. MAIN FREEZER POWER SWITCH
The Main Freezer Power switch is a two position rocker
switch that supplies power to the IntelliTec™ control,
freezing cylinder circuits and hopper refrigeration system.
When the switch is placed in the ON position, the hopper
refrigeration system will run until the preset temperature
is reached; then it will cycle ON and OFF to maintain that
temperature.
B. FREEZING CYLINDER OFF/ON SWITCH
The Freezing Cylinder OFF/ON switch is a two position
toggle switch used to supply power to the freezing cylinder
control circuit. When the switch is in the OFF position,
the freezing cylinder’s refrigeration system and auger will
not operate. When the switch is in the ON position, the
machine will be operational.
C. SPIGOT SWITCH
The spigot switch is mounted to the spigot cam assembly
behind the header panel. When the spigot is opened to
dispense product, the spigot switch opens and the “Serve
Mode” begins.
D. DISPENSE RATE ADJUSTOR
The dispense rate adjustor is located under the header
panel, to the immediate right of the spigot handles. Turning
the knob counterclockwise will decrease the dispense rate.
E. PUSH TO FREEZE BUTTON
The PUSH TO FREEZE button is a membrane or snap
switch used to initiate “Serve Mode”.
NOTE
After the PUSH TO FREEZE button is pressed,
the drive motor starts. After a 3-second delay, the
compressor will start.
F. LEDS
The membrane switch (touchpad) features two lights: a
green LED and an amber LED. The green LED is lit during “Serve Mode”. During freeze down, it is not lit. When
product consistency approaches 75% in the freezing
cylinder, the green LED fl ashes. The amber LED is on
during all other modes. Both LEDs alternatively fl ash if
an error occurs or if the freezing cylinder is off.
G. CLEAN BUTTON
The CLEAN button is a membrane, or snap switch. When
the button is pressed, the freezing cycle stops and the
drive motor will start. A CLEAN message will display on
the LCD screen along with a 5-minute countdown timer.
To exit the CLEAN mode, turn the Freezing Cylinder
OFF/ON switch to the OFF position or press the CLEAN
button again. If the machine is left in CLEAN for more
than 20 minutes, an error code (E4) will be displayed on
the display panel. Place the Freezing Cylinder OFF/ON
switch in the OFF position and back in the ON position
to clear this error.
Push to Freeze
Green LED
Amber LED
Clean Button
SEL Button
SET Button
Left Arrow Button
Up Arrow Button
Figure 3-2 IntelliTec™ Control
H. DRIVE MOTOR OVERLOAD
The internal drive motor overload will trip if the drive
motor is overloaded. It will reset after approximately 1012 minutes. If the drive motor continues to trip, refer to
Troubleshooting in Section 7.
I. MIX LOW LIGHT INDICATOR
A MIX LOW message will appear on the LCD display to
alert the operator of a low mix condition. The message
will display when there is approximately one gallon of
mix left in the hopper. When the MIX LOW message is
displayed, refi ll the hopper immediately.
L. MENU NAVIGATION BUTTONS
The Menu Navigation Buttons allow the user to display
information regarding the machine’s status of operation
as well as adjust product consistency (Fig. 3-2).
Selection Button (SEL) The SEL button is used
in combination with the up arrow button to enter
into the settings of the IntelliTec™ control. This
button is also used to navigate through the control
settings menu.
Set Button (SET) The SET button is used to save
a change made to the product consistency setting.
It is also used to save changes when modifying
control settings.
Left Arrow Button () If the left arrow button is
pressed for 5 seconds, the display will remain lit.
T o turn the light off, press the left arrow button for
5 seconds. The left arrow button is used primarily
to navigate through the control settings.
Up Arrow Button () After pressing the SET
button, the up arrow button will change the value
of the product consistency setting. This button is
also used to navigate through the control settings.
Owner’s Manual #513536-5 6 E131I/F131I Model Machines
3.3 IMPORTANT INFORMATION REGARDING
CLEANING AND SANITIZING
Soft serve machines require special consideration when it
comes to food safety and proper cleaning and sanitizing.
The following information specifi cally covers issues for
cleaning and sanitizing frozen dessert machines. This
information is meant to supplement a comprehensive
food safety program.
SOIL MATERIALS ASSOCIATED WITH FROZEN
DESSERT MACHINES
MILKFAT/BUTTERFAT – As components of ice-cream/
frozen custard mix, these soils will accumulate on the
interior surfaces of the machine and its parts. Fats are
diffi cult to remove and help attribute to milkstone buildup.
MILKSTONE – Is a white/gray fi lm that forms on equip-
ment and utensils that are exposed to dairy products.
These fi lms will accumulate slowly on surfaces because of
ineffective cleaning, use of hard water , or both. Milkstone
is usually a porous deposit, which will harbor microbial
contaminants and eventually defy sanitizing efforts.
Once milkstone has formed, it is very diffi cult to remove.
Without using the correct product and procedure, it is
nearly impossible to remove a thick layer of milkstone.
(NOTE: general-purpose cleaners DO NOT remove
milkstone.) This can lead to high bacteria counts and a
food safety dilemma.
IT IS BEST T O CONTROL MILKSTONE ON A DAIL Y BASIS BEFORE IT CAN BECOME A SIGNIFICANT FOOD
SAFETY PROBLEM.
In addition to food safety, milkstone can cause premature wear to machine parts, which can add to costs for
replacement parts or possibly more expensive repairs
if worn machine parts are not replaced once they have
become excessively worn.
IMPORTANT DIFFERENCES BETWEEN CLEANING
AND SANITIZING
CLEANING vs. SANITIZING
It is important to distinguish between cleaning and sanitiz-
ing. Although these terms may sound synonymous, they
are not. BOTH are required for adequate food safety and
proper machine maintenance.
CLEANING
· Is the removal of soil materials from a surface.
· Is a prerequisite for effective sanitizing.
NOTE
An UNCLEAN surface will harbor bacteria that can
defy sanitizing efforts.
Bacteria can develop and resist sanitizing efforts within
a layer of soil material (milkstone). Thorough cleaning
procedures that involve milkstone removal are critical for
operators of frozen dessert machines.
SANITIZING
· Kills bacteria.
· Can be effective on clean surfaces only.
NOTE
Using a SANITIZER on an unclean surface will not
guarantee a clean and safe frozen dessert machine.
PROPER DAILY MAINTENANCE:
The Only Way to Assure Food Safety and Product Quality
Proper daily maintenance can involve a wide variety
of products and procedures. Overall, the products and
procedures fall into three separate categories. (Please
note that this is a brief overview intended for informational
purposes only.)
1. CLEANING – This involves draining mix from
the freezing cylinder and rinsing the machine
with water. Next, a cleaner is run through the
machine. Then, the machine is disassembled
and removable parts are taken to the sink for
cleaning.
2. MILKSTONE REMOVAL – Since most cleaners
do not have the ability to remove milkstone, the
use of a delimer becomes necessary. Although
this procedure may not be needed on a daily
basis, it will usually follow the cleaning procedure.
It requires letting a delimer solution soak in the
machine for an extended period. Individual parts
are also soaked in a deliming solution for an
extended period of time (more about delimers in
Additional Information).
3. SANITIZING – After the machine has been
cleaned and contains no milkstone, the machine
is reassembled. Then a FDA-approved sanitizing
solution is run through the machine to kill bacteria.
The machine is then ready for food preparation.
As a recommended cleaner and sanitizer for your frozen
dessert machine, STERA-SHEEN has proven to be one
of the best daily maintenance products for:
· CLEANING – Thorough removal of all solids
including butterfat and milk fat.
· MILKSTONE REMOV AL – Complete removal of
milkstone.
· SANITIZING – FDA-approved no rinse sanitizer
for food contact surfaces.
ADDITIONAL INFORMATION
THE USE OF DELIMERS
A delimer is a strong acid that has the ability to dissolve
milkstone. This type of chemical may become necessary
once high levels of milkstone have developed. While these
products are very effective for removing HIGH levels of
milkstone, they are not ideal for two reasons:
1. PRODUCT SAFETY – Strong acids are dangerous
chemicals. Carefully follow safety instructions
provided with delimer products.
Owner’s Manual #513536-5 7 E131I/F131I Model Machines
2. MACHINE DAMAGE – Strong acids will attack
metal and rubber causing premature wear of
parts. The use of a delimer needs to be closely
monitored to avoid damage to machine surfaces
and parts.
With proper daily use of STERA-SHEEN or its equivalent,
there is no need for the use of a DELIMER.
DO NOT USE BLEACH
· BLEACH HAS ABSOLUTELY NO CLEANING
PROPERTIES.
· BLEACH IS CORROSIVE. It will damage
components of the machine causing premature
wear and metal corrosion.
GENERAL PURPOSE CLEANERS
General purpose cleaners do not have the ability to re-
move milkstone. Milkstone will become a problem if not
remedied with additional products and procedures.
THE USE OF CHLORINE TEST STRIPS
“Test strips” are used to determine concentrations of
active chlorine in sanitizing solutions. To use the strips,
tear off a small portion and submerge it into the sanitizing
solution. Then, compare the color change to the color key
on the side of the test strip dispenser to determine the
approximate chlorine concentration.
The ideal concentration of chlorine needs to be 100 ppm
(as stated by the FDA).
NOTE
Follow the directions on the container for proper
concentration.
Two main factors contribute to falling chlorine concentrations in a sanitizing solution.
1. PRODUCT USE – As the chlorine in the solution
is being used, chlorine concentrations fall.
2. TIME – As time passes, small amounts of chlorine
“evaporate” from the solution. (That is why you
can smell it.)
Sanitizing solutions should not be allowed to fall below
100 ppm chlorine. New solutions should be mixed once
old solutions become ineffective.
and procedures must comply with the local and state
health codes. Inspection for worn or broken parts should
be made at every disassembly of the machine. All worn
or broken parts should be replaced to ensure safety to
both the operator and the customer and to maintain good
machine performance and a quality product. Check the
wear line on the auger fl ights on a regular basis (Fig.
3-3) and replace as needed. Frequency of cleaning must
comply with the local health regulations.
Wear Line
Figure 3-3 Auger Flight Wear
T o disassemble the machine, refer to the following steps:
A. DISASSEMBLY OF FRONT DOOR
1. Turn the Main Freezer Power Off/On switch to
the OFF position.
2. Remove the knobs on the front door.
3. Remove the front door by pulling it off the studs.
4. Remove the spigot through the bottom of the front
door.
5. Remove all o-rings from parts by fi rst wiping off
the lubrication using a clean towel. Then squeeze
the o-ring upward to form a loop (Fig. 3-4). Roll
the o-ring out of the groove.
CAUTION
Do not use any type of sharp object to remove the
o-rings.
3.4 DISASSEMBLY OF MACHINE PARTS
WARNING
High voltage will shock, burn or cause death. The
OFF-ON switch must be placed in the OFF position
prior to disassembling for cleaning or servicing. Do
not operate machine with panels removed.
Before using the machine for the fi rst time, complete
machine disassembly, cleaning and sanitizing procedures need to be followed. Routine cleaning intervals
Owner’s Manual #513536-5 8 E131I/F131I Model Machines
Figure 3-4 Removing O-Ring
B. DISASSEMBLY OF AUGER
1. Remove the front auger support and bushing.
2. Remove the auger assembly from the machine.
Pull the auger out of the machine barrel slowly.
As the auger is being pulled out, carefully remove
each of the plastic fl ights with springs.
3. Keep the rear of the auger tipped up once it is
clear of the freezing cylinder to prevent the rear
seal assembly from dropping.
4. Wipe the spline lubricant off of the hex end of the
auger with a paper towel. Remove the rear seal
assembly (Fig. 3-5).
5. Unscrew the springs from the auger fl ights.
Figure 3-6 Clean Hoppers
D. Clean the rear seal surfaces from the inside of the
freezing cylinder with the Stera-Sheen solution.
3.6 SANITIZING MACHINE PARTS
A. Use Stera-Sheen or equivalent sanitizing solution
mixed according to manufacturer’s instructions to
provide a 100 parts per million strength solution.
Mix sanitizer in quantities of no less than 2
gallons of 90° to 1 10°F (32°C to 43°C) water. Any
sanitizer must be used only in accordance with
the manufacturer’s instructions.
B. Place all parts in the sanitizing solution for 5
minutes, then remove and let air dry completely
before assembling in machine.
Figure 3-5 Rear Seal Assembly
3.5 CLEANING DISASSEMBLED PARTS
Disassembled machine parts require complete cleaning,
sanitizing and air drying before assembling. Local and state
health codes will dictate the procedure required. Some
state health codes require a four sink process (pre-wash,
wash, rinse, sanitize, air dry), while others require a three
sink process (without the pre-wash step). The following
procedures are a general guideline only. Consult your
local and state health codes for the procedures required
in your location.
A. Prepare Stera-Sheen or equivalent cleaner
in 2 gallons of 90° to 110°F (32° to 43°C)
water following manufacturers instructions. Place
all parts in the solution and clean with provided
brushes.
B. Rinse all parts with clean 90° to 110°F (32° to
43°C) water.
C. Wash the hopper and freezing cylinder with the
Stera-Sheen solution and brushes provided (Refer
to Figure 3-6).
3.7 CLEANING THE MACHINE
The exterior should be kept clean at all times to preserve
the luster of the stainless steel. A high grade of stainless
steel has been used on the machine to ease cleanup. To
remove spilled or dried mix, wash the exterior with 90° to
1 10°F (32°C to 43°C) Stera-Sheen solution or equivalent
cleaner and wipe dry.
Do not use highly abrasive materials, as they will mar the
fi nish. Use a soft cloth or sponge to apply the cleaner. For
best results, wipe with the grain of the steel.
A. Clean the rear seal surface from inside of the
freezing cylinder.
B. Using sanitizing solution and the large barrel
brush provided, sanitize the freezing cylinder by
dipping the brush in the sanitizing solution and
brushing the inside of the freezing cylinder.
C. Remove the drip tray by pulling from the front
panel. Clean and replace the drip tray.
Owner’s Manual #513536-5 9 E131I/F131I Model Machines
3.8 ASSEMBLING MACHINE
T o assemble the machine parts, refer to the following steps:
NOTICE
Petrol-Gel sanitary lubricant or equivalent must be
used when lubrication of machine parts is specifi ed.
NOTICE
The United States Department of Agriculture and
the Food and Drug Administration require that lubricants used on food processing equipment be certifi ed for this use. Use lubricants only in accordance
with the manufacturer’s instructions.
A. Assemble all o-rings onto parts dry, without
lubrication. Then apply a thin fi lm of sanitary
lubricant to exposed surfaces of the o-rings.
B. Lubricate the rear seal area on the auger shaft
with a thin layer of sanitary lubricant. Install the
rear seal o-ring. Lubricate the outside of the rear
seal o-ring with sanitary lubricant.
C. Install the stainless steel rear seal adapter into
the rear seal dry (without lubricant). Lubricate the
inside metal surface of the rear seal adapter and
install it onto the auger shaft. DO NOT lubricate
the outside of the rear auger seal (Fig. 3-6).
H. Apply a thin layer of sanitary lubricant to the inside
and outside of the auger support bushing. Install
the bushing onto the auger support and install the
auger support into the front of the auger. Rotate
the auger support so that one leg of the support
points straight up.
I. Apply a thin layer of sanitary lubricant to the
o-rings on the spigot body and install the spigot
body through the bottom of the front door.
K. Apply a thin fi lm of sanitary lubricant to the door
seal o-ring and fi t it into the groove on the rear
of the front door.
M. Place the front door assembly on the mounting
studs and the push front door against the machine
carefully.
N. Secure the front door to the machine by placing
the knobs on the studs and tightening until fi nger
tight. Do not overtighten. A proper o-ring seal can
be observed through the transparent front door.
3.9 SANITIZING
Sanitizing must be done after the machine is clean and
just before the machine is fi lled with mix. Sanitizing the
night before is not effective. However , you should always
clean the machine and parts after using it.
NOTE
The United States Department of Agriculture and
the Food and Drug Administration require that all
cleaning and sanitizing solutions used with food
processing equipment be certifi ed for this use.
Figure 3-6 Lubricate Rear Seal
D. Lubricate the hex drive end of the auger with a
small amount of spline lubricant. A small container
of spline lubricant is shipped with the machine.
E. Screw the springs onto the studs in the plastic
fl ights. The springs must be screwed into the
fl ights completely to provide proper compression.
F. Install the two plastic fl ights onto the rear of the
auger and insert it part way into the freezing
cylinder.
G. Install the remaining plastic fl ights, push the auger
into the freezing cylinder and rotate slowly until
the auger engages the drive shaft.
When sanitizing the machine, refer to local sanitary regulations for applicable codes and recommended sanitizing
products and procedures. The frequency of sanitizing
must comply with local health regulations. Mix sanitizer
according to manufacturer’s instructions to provide a 100
parts per million strength solution. Mix sanitizer in quantities of no less than 2 gallons of 90°F to 110°F (32°C to
43°C) water. Allow sanitizer to contact the surfaces to be
sanitized for 5 minutes. Any sanitizer must be used only
in accordance with the manufacturer’s instructions.
CAUTION
Risk of Product Damage
Avoid prolonged contact of sanitizer with machine
parts. Sanitizer may cause corrosion of stainless
steel parts if there is prolonged contact.
A. Prepare 2 gallons of Stera-Sheen sanitizing
solution following the manufacturer’s instructions.
B. Install the mix inlet regulator into the hopper.
C. Pour the sanitizing solution into the hopper.
Owner’s Manual #513536-510 E131I/F131I Model Machines
D. Place the Main Power OFF/ON and Freezing
Cylinder OFF/ON switches in the ON position.
Press the CLEAN button.
E. Check for leaks.
1. Check for leaks at the front door seals.
2. Check the drain tray located under the front dor
for leaks coming from the rear of the rear auger
seal.
F . Using a sanitized soft bristle brush (or equivalent)
dipped in sanitizing solution, clean the hopper
sides, mix inlet regulator and underside of the
hopper cover.
G. After fi ve minutes, open the spigot to expel
sanitizing solution. Drain all of the solution from
the machine.
H. When the solution has drained, press the CLEAN
button to stop the auger and place the Main Power
OFF/ON and Freezing Cylinder OFF/ON switches
in the OFF position. Allow the freezing cylinder
to drain completely.
The machine is now sanitized and ready for adding mix.
3.10 INITIAL FREEZE DOWN AND OPERATION
Every Stoelting soft serve machine needs to be set on site.
The following adjustment will provide optimal product
consistency while prolonging product life.
NOTE
The machine is designed for correct operation in
ambient temperatures between 50°F and 110°F.
T emperatures out of that range may cause refrigeration problems and product quality issues.
A. ADDING MIX
1. Sanitize the machine immediately before use.
2. Make sure the Freezing Cylinder OFF/ON switch
is in the OFF position.
3. Fill the hopper with at least 2.5 gallons of mix.
4. Place a container under the spigot and open the
spigot to allow the mix to fl ush out about 8 ounces
(0.23 liters) of sanitizing solution and liquid mix.
Close the spigot.
B. PREPARING THE INTELLITEC™ CONTROL
1. On the IntelliTec™ control, press and hold the
SEL button for 8 seconds. While still holding the
SEL button, press the up arrow () button. The
LCD will read “DISPLAY”.
2. Press the left arrow () button once. The display
will read “BASIC”.
3. Press the up arrow () button once. The display
will read “CutOut amps”.
4. Press the SET button. A cursor will start blinking
under the far right digit.
5. Change the value to 8.0. Press the left arrow ()
button to move the cursor. Press the up arrow ()
button to increase the digit. When a digit reaches
9, pressing the up arrow () button again will
change the value to 0.
6. After entering 8.0, press SET to save this value.
The LCD will read “CutOut Set -- OK”.
7. Press the SEL button. The LCD will read “CutOut
amps 8.0”.
8. Press the SEL button twice. The LCD will read
“DISPLAY”.
9. Press the up arrow () button to navigate to the
“°F” and “amps” readings.
C. INITIAL FREEZE DOWN
1. Press the PUSH TO FREEZE button.
NOTE
After the drive motor starts, there is a 3-second
delay before the compressor starts.
2. As the product freezes, the “amps” value on the
display will increase. When it reaches 2.8A, open
the spigot, take a 6-8 ounce sample and measure
the temperature. For most soft serve mixes,
the desired temperature is between 19.0°F and
19.5°F.
3. Draw samples at every increase of 0.2A until
reaching the desired consistency and temperature.
NOTE
Show the sample to the customer and make sure it
meets their required consistency and temperature.
4. Record the “amps” value.
5. Place the Freezing Cylinder OFF/ON switch in
the OFF position.
D. ADJUSTING THE INTELLITEC™ CONTROL
1. Press the SEL button. The display will read
“DISPLAY”.
2. Press the left arrow () button once. The display
will read “BASIC”.
3. Press the up arrow () button once. The display
will read “CutOut amps”.
4. Change the value to the recorded value by
pressing the SET button. A cursor will start blinking
under the far right digit.
5. Press the left arrow () button to move the cursor .
Press the up arrow () button to increase the digit.
When a digit reaches 9, pressing the up arrow
() button again will change the value to 0.
6. Press the SET button to save the value. The LCD
will read “CutOut Set -- OK”.
7. Press the SEL button. The LCD will read “CutOut
amps” along with the programmed value from the
previous step.
Owner’s Manual #513536-5 11 E131I/F131I Model Machines
8. Press the SEL button three times. The LCD will
read “EXITMENU”.
9. Press the up arrow () button to exit the menu.
10. Adjustment to the control is completed.
E. SERVING PRODUCT
1. Place the Freezing Cylinder OFF/ON switch in
the ON position.
2. Press the PUSH TO FREEZE button.
3. When the product is at 75% consistency, the
display will read “SERVE”.
4. For normal dispensing, move the spigot handle
fully open.
5. The machine dispenses product at a reasonable
draw rate. If the machine is overdrawn, the result
is a soft product or a product that will not dispense
at all. If this occurs, allow the machine to run for
approximately 30 seconds before dispensing more
product. A dispense rate adjustor is located under
the header panel, to the immediate right of the
spigot handle. Turning the knob counterclockwise
will decrease the dispense rate.
6. Do not operate the machine when the MIX LOW
message is displayed. Refi ll hopper immediately.
NOTE
The machine has a standby and sleep mode. After
a preset number of freezing cycles, it will enter the
standby mode (followed by sleep mode) and remain
there until someone draws product or presses the
PUSH TO FREEZE button. In the sleep mode, the
machine will keep the product below 41°F (5°C).
Sleep modes do not take the place of cleaning
and sanitizing. Federal, State, and local regulatory
agencies determine frequency of cleaning and
sanitizing.
3.11 NORMAL FREEZE DOWN AND
OPERATION
The following section contains the recommended operating procedures for the safe operation of the machine.
A. Sanitize immediately before use.
B. Make sure the Freezing Cylinder Off/On switch
is in the OFF position.
C. Fill the hopper with at least 2.5 gallons of mix.
D. Place a container under the spigot and open the
spigot to allow the mix to fl ush out about 8 ounces
(0.23 liters) of sanitizing solution and liquid mix.
E. Place the Freezing Cylinder OFF/ON switch in
the ON position.
F. Press the PUSH TO FREEZE button.
NOTE
After the drive motor starts, there is a 3-second
delay before the compressor starts.
G. When the product is at 75% consistency, the
display will read “SERVE”. Open the spigot to
dispense product.
H. The machine dispenses product at a reasonable
draw rate. If the machine is overdrawn, the result
is a soft product or a product that will not dispense
at all. If this occurs, allow the machine to run for
approximately 30 seconds before dispensing more
product. A dispense rate adjustor is located under
the header panel, to the immediate right of the
spigot handle. Turning the knob counterclockwise
will decrease the dispense rate.
I. Do not operate the machine when the MIX LOW
message is displayed. Refi ll the mix container
immediately.
NOTE
The machine has a standby and sleep mode. After
a preset number of freezing cycles, it will enter the
standby mode (followed by sleep mode) and remain
there until someone draws product or presses the
PUSH TO FREEZE button. In the sleep mode, the
machine will keep the product below 41°F (5°C).
Sleep modes do not take the place of cleaning
and sanitizing. Federal, State, and local regulatory
agencies determine frequency of cleaning and
sanitizing.
3.12 MIX INFORMATION
Mix can vary considerably from one manufacturer to
another. Differences in the amount of butterfat content
and quantity and quality of other ingredients have a
direct bearing on the fi nished frozen product. A change
in machine performance that cannot be explained by a
technical problem may be related to the mix.
Proper product serving temperature varies from one
manufacturer’s mix to another. Mixes should provide a
satisfactory product in the 20°F to 24°F range. Diet and
low-carb mixes typically freeze to proper consistency at
higher temperatures.
When checking the temperature, stir the thermometer in
the frozen product to get an accurate reading.
Old mix, or mix that has been stored at too high a temperature, can result in a fi nished product that is unsatisfactory.
To retard bacteria growth in dairy based mixes, the best
storage temperature range is between 33° to 38°F (0.5°
to 3.3° C).
Owner’s Manual #513536-5 12 E131I/F131I Model Machines
SECTION 4
MAINTENANCE AND ADJUSTMENTS
4.1 MACHINE ADJUSTMENT
This section is intended to provide maintenance personnel
with a general understanding of the machine adjustments.
It is recommended that any adjustments in this section
be made by a qualifi ed person.
4.2 PRODUCT CONSISTENCY
ADJUSTMENT
The operator can adjust product consistency by modifying
the Fine Adjustment setting on the membrane switch. This
is the only adjustment that can be made by the operator
without using a pass code key sequence. Increasing this
setting will increase the drive motor amperage cutout and
increase product consistency. Follow the instructions
below to make fi ne adjustments to product consistency.
A. Place the Main Freezer Power switch in the ON
position.
B. Press the SET button on the Control Panel once.
Fine Adj will appear on the LCD screen.
C. Press the up arrow button until the desired
consistency setting is displayed. The higher the
number, the fi rmer the product consistency. The
control may be set from 1 to 9. The value increases
by 1 each time the up arrow button is pressed.
After the value reaches 9, numbering restarts at
0. The 0 setting cannot be set.
D. Press the SET button once to save the setting
and return to the current mode display.
4.3 LOCKING THE CONTROL PANEL
The IntelliTec™ control has a tamper proof mode to
prevent unauthorized use. When set, all buttons on the
control panel are disabled. Follow the instructions below
to lock the control panel
A. Press and hold the PUSH TO FREEZE button
for at least 5 seconds.
B. While still holding the PUSH TO FREEZE button,
press the CLEAN button once.
C. Release both buttons. An asterisk (*) will appear
on the bottom line of the display, indicating that
the control is in the lock out mode.
NOTE:
Repeat steps A, B, and C to unlock the control
panel.
4.4 OBTAINING READINGS AND
MODIFYING SETTINGS (SERVICE PERSONNEL
ONLY)
Readings and settings on the IntelliTec™ control are accessed through the IntelliTec™ Control Menu Settings
(Refer to Figure 4-2). Locating machine readings and
system function settings are completed using the up arrow
() and left arrow () buttons on the membrane switch. A
printed IntelliTec™ Menu Settings sheet is located in the
information pouch behind the header panel.
IntelliTec™ Control Readings
To obtain machine readings, locate the value on the machine’s menu settings sheet and follow the steps below.
A. Press and hold SEL button for 8 seconds. While
still holding the SEL button, press the up arrow
button (). The LCD Screen will read DISPLAY.
B. Release both buttons.
C. Press the up arrow button () to navigate to the
correct reading under DISPLA Y or press the left
arrow () button to navigate to the ERRCODES
menu.
D. Press the up arrow () and left arrow () buttons
to navigate through the rest of the readings as
needed.
E. When all readings have been obtained, press
the up arrow button () from ExitMenu to return
to the current mode display.
Figure 4-1 Membrane Switch
Owner’s Manual #513536-5 13 E131I/F131I Model Machines
Figure 4-2 IntelliTec™ Control Menu Settings
Owner’s Manual #513536-5 14 E131I/F131I Model Machines
Modifying Control Settings
To change the value of a system function, locate the
function on the IntelliTec™ Settings Menu and follow the
steps below.
IMPORTANT:
Before making changes to any settings, record
the original values. If the setting changes do not
achieve desired results, revert settings to their
original values.
A. Press and hold SEL button for 8 seconds. While
still holding the SEL button, press the up arrow
button (). The LCD Screen will read DISPLAY.
B. Release both buttons.
C. Press the left arrow button () to get to the correct
menu (Basic, Advanced, or Storage).
D. Press the up arrow button () to navigate to the
value that needs to be changed.
E. Press SET button to enter edit mode.
F. Press the up arrow button () to change setting.
G. Press SET button to save the setting and exit the
edit mode.
H. Press the up arrow () and left arrow () buttons
to navigate through the rest of the settings as
needed.
I. When all changes have been completed, press
the up arrow button () from ExitMenu to return
to the current mode display.
4.5 READINGS (SERVICE PERSONNEL
ONLY)
The IntelliT ec™ control continuously monitors and records
temperatures, voltages, amps, and error code details.
Each of these readings are benefi cial to service personnel
when troubleshooting.
DISPLAY READINGS
Following are the readings available under the DISPLA Y
menu:
Hopper L (°F) / Hopper R (°F)
The temperature of the left and right hoppers are
constantly monitored by the IntelliTec™ control.
Cycles (count)
This reading counts down the number of cycles
in the current “Serve Mode”. The starting value
is dependant upon the Cycles setting on the
IntelliTec™ control.
°F and amps
Suction line temperature on the freezing cylinder
and drive motor amps are available on the same
screen to assist with setup and troubleshooting.
Aux. Temp (°F)
This reading provides the ambient temperature
around the IntelliTec™ control.
Supply V (VAC)
A calculated input voltage is recorded.
ERROR CODE READINGS
The following details are recorded under the ERRCODES
menu for each of the last 25 error codes received:
Err1 (hours)
A numerical count of the last 25 error codes is
recorded. When the 26th error has occurred
the earliest error code is erased. A timer also
begins when an error occurs. The timer records
the number of hours since the error occurred. If
power to the machine is interrupted, the timer will
stop until power has been restored.
°F and amps
The suction gas temperature on the freezing
cylinder and the drive motor amps are recorded
at the time of the error.
Aux. Temp (°F)
Ambient temperature of the IntelliTec™ control
is recorded at the time of the error.
Str (°F)
The storage temperature is recorded at the time
of the error.
VAC and Mode
A calculated input voltage and mode at which
the error occurred are recorded. Following are
descriptions of each mode:
Mode Description
0 Start of freezing cycle
1 Compressor and drive motor on
2 Stir Cycle
3 Compressor off
4 “Standby Mode”
5 “Sleep 1 Mode”
6 “Sleep 2 Mode”
7 “Clean Mode”
8 Startup
9 Storage only refrigeration
10 Freezing cycle is shut down
11 Door safety switch triggered
12 High pressure cutout
Owner’s Manual #513536-5 15 E131I/F131I Model Machines
Up Time (hours)
This value is a record of the total time the machine
has been in service. If power is interrupted, the
timer will stop until power is restored. This timer
does not reset.
RUN STATISTICS
In addition to dynamic readings and recorded error code
details, the IntelliT ec™ control records rolling averages of
run statistics. Following are the readings available under
the RUNSTATS menu:
On Times (sec)
The control records the time of each freezing
cycle and provides a rolling average.
Off Times (sec)
The control records the time between freezing
cycles and provides a rolling average.
Brl. Min (°F)
The lowest average barrel temperature is
recorded.
Brl. Max (°F)
The highest average barrel temperature is
recorded.
Stor Min (°F)
The lowest average hopper or cabinet temperature
is recorded.
Stor Max (°F)
The highest average hopper temperature is
recorded.
Power On (hrs)
This value is a record of the time the machine
has been in service. If power is interrupted, the
timer will reset.
4.6 ADJUSTMENTS (SERVICE PERSONNEL
ONLY)
The following adjustments directly affect product consistency and length of time in “Serve Mode”. The default
settings have been created using a 5% milkfat soft serve
mix and provide optimal product consistency while prolonging product life.
CutOut (amps)
It is recommended to change the CutOut value
at initial startup and when changing mix types.
Adjustments to this setting directly affect the
length of the freezing cycle which changes product
consistency. To properly set the CutOut value,
refer to Section 3-10.
Cut In T (°F)
After the consistency value has been determined,
the Cut In T value can be adjusted. The Cut In
T is the temperature of the refrigerant gas in the
evaporator. Changing this setting changes the
temperature at which the freezing cycle starts. This
value along with the CutOut value determines the
range of temperatures (or “temperature window”)
of the product. Decreasing the temperature
decreases the temperature window and, under
normal use, increases the amount of freezing
cycles. This creates a greater chance of product
breakdown by stirring the product often. Increasing
the Cut In T increases the temperature window
which decreases freezing cycles and increases
the chance of heat shock within the product.
Cycles (count)
This setting determines the number of freezing
cycles during “Serve Mode”. Increasing the value
will increase the total time in “Serve Mode”. Factory
default is 16 cycles. This results in “Serve Mode”
lasting about 2 to 2-1/2 hours without the PUSH
TO FREEZE button being pressed or a spigot
handle being pulled. If the PUSH TO FREEZE
button is pressed or the spigot handle is pulled at
any time during “Serve Mode”, the Cycles count
will reset.
4.7 OTHER SETTINGS (SERVICE
PERSONNEL ONLY)
Changing any setting on the IntelliTec™ control will alter
machine operation and affect the product temperature,
consistency, or life. Refer to the IntelliT ec™ Control System
Settings sheet located in the information pouch behind
the header panel of the machine. If any of the following
settings on the IntelliT ec™ control dif fer from the System
Settings sheet, it is recommended to revert those settings
to factory defaults.
Stir On (sec)
Adjustments to this setting affect the amount of
time the auger rotates in the stir cycle. The stir
cycle occurs in “Serve Mode”, “Standby Mode”,
and “Sleep 2 Mode”.
Stir Off (sec)
Adjustments to this setting affect the time between
stir cycles. The stir cycle occurs in “Serve Mode”,
“Standby Mode”, and “Sleep 2 Mode”.
On Time (sec)
Increasing this value will increase the length of the
freezing cycle during “Standby Mode” and result
in a decrease of average product temperature in
the barrel.
Owner’s Manual #513536-5 16 E131I/F131I Model Machines
Off Time (sec)
Increasing this value will increase the time between
freezing cycles in “Standby Mode” and result in
an increase of product temperature in the barrel.
Stb Time (sec)
This setting determines the total amount of time
in “Standby Mode”.
Sl1DrvOn (sec)
Adjustments to this setting affect the amount of
time the auger rotates in the stir cycle. This stir
cycle only occurs in “Sleep 1 Mode”.
Sl1DrOff (sec)
Adjustments to this setting affect the time between
stir cycles. The stir cycle only occurs in “Sleep 1
Mode”.
Sl2CutIn (°F)
Changing this setting affects the temperature at
which the freezing cycle starts in “Sleep 2 Mode”.
Sl2CtOut (°F)
Changing this setting affects the temperature at
which the freezing cycle stops in “Sleep 2 Mode”.
DftOffTm (sec)
In “Serve Mode”, this value determines the
maximum time without a freezing cycle. If this
value is met, a freezing cycle will start. In the event
of a freezing cylinder temperature sensor failure,
this value affects the amount of time between
freezing cycles during “Serve Mode”.
Refriger
This setting changes how the control handles the
storage refrigeration cycle. The setting for the
E131 and F131 is 2 Hopper on the left control
and None on the right control.
HprCutIn (°F)
This setting determines the temperature at which
the hopper refrigeration cycle starts. This setting
is only available on the left control.
HprCtOut (°F)
This setting determines the temperature at which
the hopper refrigeration cycle stops. This setting
is only available on the left control..
Hpr Off (min)
If the temperature sensor in the hopper fails,
this setting determines the time between hopper
refrigeration cycles. This setting is only available
on the left control..
Hpr On (sec)
If the temperature sensor in the hopper fails,
this setting determines the length of the hopper
refrigeration cycle. This setting is only available
on the left control..
4.8 DRIVE BELT TENSION ADJUSTMENT
To check belt tension, refer to Figure 4-4 and follow the
steps below:
WARNING
Hazardous voltage
The Main Freezer Power switch must be placed in
the OFF position when disassembling for servicing.
The freezer must be disconnected from electrical
supply before removing any access panel. Failure
to disconnect power before servicing could result
in death or serious injury.
A. Remove the back panel.
B. Use a Burroughs Belt Tension Gauge to set the
tension for the drive belt. Set the belt tension to
35-40 lbs.
C. If an adjustment is necessary, loosen the four
motor plate retaining nuts, adjust belt tension
then retighten the four nuts.
D. Using a straightedge, check that the drive motor
pulley is aligned with the speed reducer pulley.
Align the pulley if necessary.
NOTE
Belt life will be increased if new drive belts are
tightened after two or three weeks of operation.
Figure 4-4 Belt Tension Adjustment
4.9 CONDENSER CLEANING
The air-cooled condenser is a copper tube and aluminum
fi n type. Condensing is totally dependent upon airfl ow .
A plugged condenser fi lter, condenser, or restrictions in
the louvered panel will restrict airfl ow. This will lower the
capacity of the system and damage the compressor. The
Owner’s Manual #513536-5 17 E131I/F131I Model Machines
condenser must be kept clean of dirt and grease. The
machine must have a minimum of 3” (7.5 cm) of ventilation on the right and left sides of the unit for free fl ow of
air. Make sure the machine is not pulling over 100° F (37°
C) air from other equipment in the area.
The water-cooled condenser is a tube and shell type. The
condenser needs a cool, clean supply of water to properly
cool the machine, inlet and discharge lines must be 3/8”
I.D. minimum.
The condenser and condenser fi lter require periodic clean-
ing. To clean, refer to the following procedures.
1. Remove the Phillips head screw from the bottom
of the right side panel, and then slide the panels
down and out.
2. To remove the condenser fi lter, grasp the top
and pull off. Visually inspect for dirt. If the fi lter
is dirty, shake or brush excess dirt off the fi lter
and wash in warm, soapy water. Once the fi lter is
clean rinse thoroughly in warm, clear water and
shake dry , taking care not to damage the fi lter in
any way (Figure 4-5).
4.10 PREVENTATIVE MAINTENANCE
It is recommended that a preventative maintenance
schedule be followed to keep the machine clean and
operating properly . The following steps are suggested as
a preventative maintenance guide.
The United States department of agriculture and the food
and drug administration require that lubricants used in
food zones be certifi ed for this use. Use lubricants only
in accordance with the manufacturer’s instructions.
A. Daily checks
Check for any unusual noise or condition and
repair immediately.
B. Monthly checks
Check the condenser fi lter for dirt. (Refer to section
4.9).
C. Quarterly Checks
Check drive belts for wear and tighten belts if
necessary. (Refer to section 4.8)
4.11 EXTENDED STORAGE
Refer to the following steps for storage of the machine
over any long period of shutdown time:
A. Clean thoroughly with warm detergent all parts
that come in contact with mix. Rinse in clear water
and dry all parts. Do not sanitize.
NOTE
Do not let cleaning solution stand in machine barrel
or mix pump during the shutdown period.
Figure 4-5 Condenser Filter Removal
3. Visually inspect the condenser for dirt by shining
a light through the coil from the back (inside) of
the condenser.
4. If the condenser is dirty, place a wet towel over
the outside of the condenser.
5. Using compressed air or a CO
tank, blow out the
2
dirt from the inside of the condenser. Most of the
dirt will cling to the wet towel.
NOTE
If the condenser is not kept clean, refrigeration effi ciency will be lost.
B. Remove, disassemble, and clean the front door,
and auger shaft. Leave disassembled during the
shutdown period.
C. Place the auger fl ights and auger support bushing
in a plastic bag with a moist paper towel. This will
prevent them from becoming brittle if exposed to
dry air over an extended period of time (over 30
days).
D. For water-cooled machines that are left in unheated
buildings, or buildings subject to freezing, the water
must be shut off and disconnected. Disconnect
the water inlet fi tting. The fi tting is located at the
rear of the machine. Run the compressor for 2 - 3
minutes to open water valve (the front door must
be attached for the compressor to run). Blow
out all water through water inlet. Drain the water
supply line coming to the machine. Disconnect
the water outlet fi tting.
E. Place the Main Freezer Power OFF/ON switch
in the OFF position.
F. Disconnect the machine from the source of
electrical supply.
Owner’s Manual #513536-5 18 E131I/F131I Model Machines
SECTION 5
TROUBLESHOOTING
5.1 ERROR CODES
When the machine experiences a problem, one of the
following error codes will be displayed on the control
panel. Each error code directs you to the system location
of the malfunction.
ERROR CODE MALFUNCTION
1 Soft
2 High Torque
3 Run Time
4 Clean
5 Freezing Cylinder Sensor
6 Hopper Sensor (single hopper machines)
7 Drive Motor
8 Cab Sensor
9 High Pressure Cutout
10 Auxiliary Sensor
11 Low Temperature
12 Left Hopper Sensor
13 Right Hopper Sensor
To return the machine to normal operation, any error
causing condition must be corrected and the Freezing
Cylinder Off-On switch must be placed in the Off position
and back in the On position before the affected side of
the machine will return to normal operation.
5.2 TROUBLESHOOTING
Error Code 1 - Soft Error
The Soft Error (E1) is an internal control board error
that is logged for future analysis. The refrigeration
is never stopped and the machine will continue
to operate normally.
Error Code 2 - High Torque
If the control panel displays a High Torque Error
(E2), the controller has sensed that the drive motor
is running at a high load for 10 or more seconds.
This may be due to the product consistency
adjustment being set too high. Place the Main
Power OFF/ON switch in the OFF position, wait
until the product in the freezing cylinder thaws
and return the switch to the ON position. Follow
the instructions in Section 3 to reduce the product
consistency by a few levels. If the error persists,
contact your Authorized Stoelting Distributor for
further assistance.
Error Code 3 - Run Time
The Run Time Error (E3) occurs when the
compressor runs continuously for an extended
period or if the product does not reach proper
temperature in “Sleep 2 Mode”. This error is
generally caused by very low mix levels in the
machine’s hopper or from product breakdown.
Another common cause results from a restriction
preventing mix from entering the freezing cylinder.
Check the mix in the hopper. If the level mix is
low, add mix. If there is a possibility that the mix
has broken down, clean and sanitize the machine
and replace the mix with fresh product.
Ice crystals in the hopper can clog the mix inlet
system and prevent mix from entering the freezing
cylinder. Thoroughly thaw mix per manufacturer’s
recommendations. T o check for ice crystals, pour
a small amount of product from the mix container
through a clean and sanitized sieve or strainer.
If ice crystals are in the mix, check temperature
of the walk-in cooler where the mix is stored.
In air cooled machines, the Run Time Error may
indicate that airfl ow within the machine has
reduced or stopped. Check the sides and top
of the machine for anything that would restrict
airfl ow.
If the error persists after attempting to clear it,
contact your Authorized Stoelting Distributor for
further assistance.
Error Code 4 - Clean
If the machine is left in the Clean Mode for more
than 20 minutes, the control panel will display a
Clean Error (E4). This condition does not refl ect a
problem with the machine itself. The Clean Error
has been programmed into the controller as a
safeguard to protect the machine from potential
damage caused by the machine being accidentally
left in "Clean Mode". The control will attempt
to restart itself after 5 minutes. The display will
then fl ash and read Restart. To clear the Clean
Error, turn the Freezing Cylinder Off-On switch
Off and back On. After restarting the machine,
a refrigeration cycle will begin. This protects the
product in case the clean button was pressed by
mistake.
Owner’s Manual #513536-5 19 E131I/F131I Model Machines
Error Code 5 - Freezing Cylinder Sensor
The Freezing Cylinder Sensor Error (E5) indicates
a failure of the barrel sensor or that the sensor
is out of range. If the control panel displays an
E5, place the Freezing Cylinder Off-On switch
Off and back On. If the error persists, contact
your Authorized Stoelting Distributor for further
assistance.
NOTE
When the machine encounters a Freezing Cylinder
Sensor Error, the machine will continue to run using
preset timers. This mode will allow the operator to
continue serving product until the machine can be
serviced.
(E7), the control does not sense current coming
from the drive motor. T urn the Freezing Cylinder
Off-On switch Off and back On. If the error persists,
contact your Authorized Stoelting Distributor for
further assistance.
Error Code 8 - Cab Sensor
A Cab Sensor Error (E8) will not occur on the
machine.
Error Code 9 - High Pressure Cutout
High Pressure Cutout Errors (E9) are usually
caused by a dirty or ineffi cient condenser. If the
control panel displays an E9 on an air cooled
machine, check for proper air clearance around
the machine. If the error persists, contact your
Authorized Stoelting Distributor for further
assistance.
Error Code 10 - Auxiliary Sensor
An Auxiliary Temperature Sensor Error (E10)
occurs if the temperature sensor on the control
board fails. Turn the Freezing Cylinder Off-On
switch Off and back On. If the error persists,
contact your Authorized Stoelting Distributor for
further assistance
Error Code 11 - Low Temperature
The Low Temperature Error (E11) occurs when
the temperature of the gas refrigerant at the barrel
sensor falls below -20°F. Although the machine
will not shut down, the active freezing cycle
will immediately end. This error usually occurs
when the machine continues to run in a low mix
condition or if the machine runs out of mix. The
product towards the front of the barrel tends to
freeze solid.
Error Code 12 - Left Hopper Sensor
The Left Hopper Sensor Error (E12) indicates a
failure of the hopper sensor or that the sensor
is out of range. If the control panel displays an
E12, turn the left Freezing Cylinder Off-On switch
Off and back On. If the error persists, contact
your Authorized Stoelting Distributor for further
assistance.
NOTE:
If the right control panel shows an E12, make sure
the storage setting is set to NONE.
Error Code 13 - Right Hopper Sensor
The Right Hopper Sensor Error (E13) indicates
a failure of the hopper sensor or that the sensor
is out of range. If the control panel displays an
E13, turn the right Freezing Cylinder Off-On switch
Off and back On. If the error persists, contact
your Authorized Stoelting Distributor for further
assistance.
NOTE:
If the right control panel shows an E13, make sure
the storage setting is set to NONE.
Alternating Flashing Control Panel Lights
The display panel lights will fl ash in an alternating
sequence under any error codes. Clear the error
and place the Freezing Cylinder Off-On switch in
the Off position and back in the On position.
Owner’s Manual #513536-520 E131I/F131I Model Machines
5.3 TROUBLESHOOTING - MACHINE
PROBLEMPOSSIBLE CAUSEREMEDY
Machine does not
run.
Machine will not
shut off.
Product is too fi rm.
Product is too soft.
Product does not
dispense.
Drive belt slipping
or squealing.
Rear auger seal
leaks.
Front door leaks.
1 Power to machine is off.1 Supply power to machine.
2 Freeze-up (auger will not turn).2 Turn machine off for 15 minutes, then restart.
3 Front door not in place.3 Assemble front door in place.
1 Drive belt failure.1 Replace drive belt.
2 CutOut setting too high2 Adjust the CutOut (See Section 4)
3 Refrigeration problem.3 Check system. (Call distributor for service)
1 CutOut setting too high1 Adjust the CutOut (See Section 3)
1 No vent space for free fl ow of cooling
air.
2 Condenser is dirty.2 Clean the condenser. (See Section 4)
3 CutOut setting too low3 Adjust the CutOut (See Section 4)
4 Auger is assembled incorrectly.4 Remove mix, clean, reassemble, sanitize and
5 Refrigeration problem.5 Check system. (Call distributor for service)
1 No mix in hopper.1 Add mix to the hopper.
2 Drive motor overload tripped.2 Wait for automatic reset. (If condition
3 Drive belt failure.3 Replace drive belt.
4 Freeze-up (Auger will not turn).4 Turn machine off for 15 minutes, then restart.
1 Worn drive belt.1 Replace drive belt.
2 Freeze-up (Auger will not turn).2 Turn machine off for 15 minutes, then restart.
3 Not tensioned properly.3 Adjust belt tension
1 Outside surface of rear auger seal is
lubricated.
2 Rear seal missing or damaged.2 Check or replace.
3 Seal o-ring missing, damaged or
installed incorrectly.
4 Worn or scratched auger shaft.4 Replace auger shaft.
1 Front door knobs are loose.1 Tighten knobs.
2 Spigot parts are not lubricated.2 See Section 3.
3 Chipped or worn spigot o-rings.3 Replace o-rings.
4 O-rings or spigot installed wrong.4 Remove spigot and check o-ring.
5 Inner spigot hole in front door nicked
or scratched.
1 A minimum of 3” of air space on the sides.
(See Section 2)
freeze down.
continues, call distributor for service.)
1 Clean lubricant from outside of rear seal and
thoroughly clean rear of freezing cylinder.
Lubricate inside of seal and reinstall.
3 Check or replace.
5 Replace front door.
Owner’s Manual #513536-5 21 E131I/F131I Model Machines
Owner’s Manual #513536-5 22 E131I/F131I Model Machines
6.1 DECALS AND LUBRICATION
Part Description Quantity
208135Brush - 4” X 8” X 16” (Barrel) 1
208380Brush - 1/4” X 3” X 14” 1
208401Brush - 1” X 3” X 10” 1
208467Brush - 3/8” X 1” X 5” 1
236025Card - Cleaning Instruction 1
324065Decal - Water Inlet 1
324105Decal - Caution Electrical Shock 1
324106Decal - Caution Electrical Wiring Materials 1
324107Decal - Caution Hazardous Moving Parts 1
324141Decal - Caution Rotating Blades 1
324200Decal - High Pressure Cut-Out (Water-Cooled) 1
324208Decal - Attention Refrigerant Leak Check 1
324393Decal - Stoelting Swirl Logo (Drip Tray Support) 1
324509Decal - Cleaning Instructions 1
324566Decal - Wired According To 1
324584Decal - Adequate Ventilation 3” 1
324592Decal - Hold Ready 1
324593Decal - Power 1
324594Decal - Attention Heat Sensitive 1
324612Decal - Control 1
324686Decal - Danger Automatic Start 1
324803Decal - Domed Stoelting Logo (Large) (Header Panel) 1
324804Decal - Domed Stoelting Swirl (Header Panel) 1
324806Decal - Domed A & W Logo (Header Panel) 1
324825Decal - Main Freezer Power 1
324827Decal - Freezing Cylinder 1
368140Filter - Air (Condenser) 1
396241Gasket - Freezer Base 1
508048Lubricant - Spline (2 oz Squeeze Tube) 1
508135Petrol Gel - 4 oz Tube 1
1159584Mix Out Audible Signal Kit -2177917Brush Kit -
SECTION 6
REPLACEMENT PARTS
Owner’s Manual #513536-5 23 E131I/F131I Model Machines
6.2 AUGER SHAFT AND FACEPLATE PARTS
Owner’s Manual #513536-5 24 E131I/F131I Model Machines
Owner’s Manual #513536-525 E131I/F131I Model Machines
Owner’s Manual #513536-526 E131I/F131I Model Machines
WARRANTY
SOFT SERVE / SHAKE FREEZERS
1. Scope:
Stoelting, LLC warrants to the first user (the “Buyer”) that the freezer cylinders, hoppers, compressors, drive
motors, speed reducers, augers and auger flights of Stoelting soft serve / shake freezers will be free from defects
in materials and workmanship under normal use and proper maintenance appearing within five (5) years, and that
all other components of such equipment manufactured by Stoelting will be free from defects in material and
workmanship under normal use and proper maintenance appearing within twelve (12) months after the date that
such equipment is originally installed.
2. Disclaimer of Other Warranties:
THIS WARRANTY IS EXCLUSIVE; AND STOELTING HEREBY DISCLAIMS ANY
IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR PARTICULAR
PURPOSE.
3. Remedies:
Stoelting’s sole obligations, and Buyer’s sole remedies, for any breach of this warranty shall be the repair or (at
Stoelting’s option) replacement of the affected component at Stoelting’s plant in Kiel, Wisconsin, or (again, at
Stoelting’s option) refund of the purchase price of the affected equipment, and, during the first twelve (12)
months of the warranty period, deinstallation/reinstallation of the affected component from/into the equipment.
Those obligations/remedies are subject to the conditions that Buyer (a) signs and returns to Stoelting, upon
installation, the Checklist/Warranty Registration Card for the affected equipment, (b) gives Stoelting prompt
written notice of any claimed breach of warranty within the applicable warranty period, and (c) delivers the
affected equipment to Stoelting or its designated service location, in its original packaging/crating, also within
that period. Buyer shall bear the cost and risk of shipping to and from Stoelting’s plant or designated service
location.
4. Exclusions and Limitations:
This warranty does not extend to parts, sometimes called “wear parts”, which are generally expected to
deteriorate and to require replacement as equipment is used, including as examples but not intended to be limited
to o-rings, auger seals, auger support bushings and drive belts. All such parts are sold
AS IS.
Further, Stoelting shall not be responsible to provide any remedy under this warranty with respect to any
component that fails by reason of negligence, abnormal use, misuse or abuse, use with parts or equipment not
manufactured or supplied by Stoelting, or damage in transit.
THE REMEDIES SET FORTH IN THIS WARRANTY SHALL BE THE SOLE LIABILITY
STOELTING AND THE EXCLUSIVE REMEDY OF BUYER WITH RESPECT TO
EQUIPMENT SUPPLIED BY STOELTING; AND IN NO EVENT SHALL STOELTING BE
LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, WHETHER FOR
BREACH OF WARRANTY OR OTHER CONTRACT BREACH, NEGLIGENCE OR
OTHER TORT, OR ON ANY STRICT LIABILITY THEORY.
January 30, 2003
721-013, Rev. 0
File: Policy Manual/Warranty softserve1
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