Page 1
903
OWNERS MANUAL
MODEL
M4200-3SV
VENTED
CONVECTION
OVEN
Includes
OPERATING
INSTRUCTIONS
MAINTENANCE
INSTRUCTIONS
PARTS LIST
Model M4200-3SV
with optional PREP TOP
IMPORTANT: DO NOT DISCARD THIS MANUAL
This manual is considered to be part of the appliance and is to be given to the OWNER or
MANAGER of the restaurant, or to the person responsible for TRAINING OPERATORS of
this appliance. Additional manuals are available from your WELLS DEALER.
THIS MANUAL MUST BE READ AND UNDERSTOOD BY ALL PERSONS U S ING OR
INSTALLING THIS APPLIANCE. Contact your WELLS DEALER if you have any
questions concerning installation, operation or maintenance of this equipment.
p/n 305694 Rev. (-) M903 111802 cps
Page 2
LIMITED WARRANTY STATEMENT
Unless otherwise specified, all commercial cooking equipment manufactured by WELLS MFG. CO. is warranted
against defects in materials and workmanship for a period of
one year from the date of original installation or 18 months
from the date of shipment from our factory, whichever
comes first, and is for the benefit of the original purchaser
only.
THIS WARRANTY IS THE COMPLETE AND ONLY WARRANTY, EXPRESSED OR IMPLIED IN LAW OR IN FACT,
INCLUDING BUT NOT LIMITED TO, WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE, AND/OR FOR DIRECT, INDIRECT OR
CONSEQUENTIAL DAMAGES IN CONNECTION WITH
WELLS MFG. CO. PRODUCTS. This warranty is void if it
is determined that, upon inspection by an authorized service
agency, the equipment has been modified, misused, misapplied, improperly installed, or damaged in transit or by fire,
flood or act of God. It also does not apply if the serial nameplate has been removed, or if service is performed by unau-
SERVICE POLICY AND PROCEDURE GUIDE
ADDITIONAL WARRANTY EXCLUSIONS
1. Resetting of safety thermostats, circuit breakers, over
load protectors, and/or fuse replacements are not
covered by this warranty unless warranted conditions
are the cause.
2. All problems due to operation at voltages or phase
other than specified on equipment nameplates are
not covered by this warranty.
Conversion to correct voltage and/or phase must be
the customer’s responsibility.
3. All problems due to electrical connections not made
in accordance with electrical code requirements
and wiring diagrams supplied with the equipment are
not covered by this warranty.
4. Replacement of items subject to normal wear, to
include such items as knobs, light bulbs; and, normal
maintenance functions including adjustments of
thermostats, adjustment of micro switches and
replacement of fuses and indicating lights are not
covered by warranty.
5. Damage to electrical cords and/or plug due to exposure
to excessive heat are not covered by this warranty.
6. Full use, care, and maintenance instructions supplied
with each machine. Noted maintenance and
preventative maintenance items, such as servicing and
thorized personnel. The prices charged by Wells Mfg. Co.
for its products are based upon the limitations in this warranty. Seller’s obligation under this warranty is limited to the
repair of defects without charge by a Wells Mfg. Co. factory
authorized service agency or one of its sub-service agencies. This service will be provided on customer’s premises
for non-portable models. Portable models (a device with a
cord and plug) must be taken or shipped to the closest authorized service agency, transportation charges prepaid, for
service. In addition to restrictions contained in this warranty,
specific limitations are shown in the Service Policy and Procedure Guide. Wells Mfg. Co. authorized service agencies
are located in principal cities. This warranty is valid in the
United States and Canada and void elsewhere. Please
consult your classified telephone directory, your foodservice
equipment dealer or write the Factory Service Department,
Wells Manufacturing Company, P.O. Box 280, Verdi, Nevada 89439, phone (775) 345-0444 or (888) 492-2782, for
information and other details concerning warranty.
cleaning schedules, are customer responsibility. Those
miscellaneous adjustments noted are customer
responsibility. Proper attention to preventative
maintenance and scheduled maintenance procedures
will prolong the life of the appliance.
7. Travel mileage is limited to sixty (60) miles from an
Authorized Service Agency or one of its sub-service
agencies.
8. All labor shall be performed during regular working
hours. Overtime premium will be charged to the buyer.
9. All genuine Wells replacement parts are warranted for
ninety (90) days from date of purchase on nonwarranty equipment. This parts warranty is limited only
to replacement of the defective part(s). Any use of
non-genuine Wells parts completely voids any
warranty.
10. Installation, labor, and job check-outs are not
considered warranty and are thus not covered by this
warranty.
11. Charges incurred by delays, waiting time or operating
restrictions that hinder the service technician’s ability to
perform service are not covered by warranty. This
includes institutional and correctional facilities.
SHIPPING DAMAGE CLAIM PROCEDURE
NOTE: For your protection, please note that equipment in
this shipment was carefully inspected and packaged by
skilled personnel before leaving the factory. Upon acceptance of this shipment, the transportation company assumes
full responsibility for its safe delivery.
IF SHIPMENT ARRIVES DAMAGED:
1. VISIBLE LOSS OR DAMAGE: Be certain that any
visible loss or damage is noted on the freight bill or
express receipt, and that the note of loss or damage is
signed by the delivery person.
2. FILE CLAIM FOR DAMAGE IMMEDIATELY:
Regardless of the extent of the damage.
3. CONCEALED LOSS OR DAMAGE: if damage is
unnoticed until the merchandise is unpacked, notify the
transportation company or carrier immediately, and file
“CONCEALED DAMAGE” claim with them. This
should be done within fifteen (15) days from the date
the delivery was made to you. Be sure to retain the
container for inspection.
Wells Manufacturing cannot assume liability for damage or
loss incurred in transit. We will, however, at your request,
supply you with the necessary documents to support your
claim.
xi
Page 3
TABLE OF CONTENTS
WARRANTY xi
SPECIFICATIONS 1
FEATURES & OPERATING CONTROLS 2
PRECAUTIONS & GENERAL INFORMATION 4
AGENCY LISTING INFORMATION 4
INSTALLATION 5
OPERATION 8
CLEANING INSTRUCTIONS 10
PREVENTATIVE MAINTENANCE
Hinge Adjustment 12
TROUBLESHOOTING SUGGESTIONS 13
EXPLODED VIEW and PARTS LIST 14
WIRING DIAGRAM 18
PARTS & SERVICE 19
CUSTOMER SERVICE DATA 19
INTRODUCTION
Thank You for purchasing this Wells Manufacturing Co. appliance.
Proper installation, professional operation and consistent maintenance of this appliance will ensure that it
gives you the very best performance and a long, economical service life.
This manual contains the information needed to properly install this appliance, and to use and care for the
appliance in a manner which will ensure its optimum performance.
SPECIFICATIONS
DIMENSIONS APPLIANCE OVEN CAVITY
Wide 30-1/8” (765mm) 14-3/8” (365mm)
Deep 25-1/4” (641mm) oven only 21” (533mm)
27-7/8” (682mm) incl. handle
High 25-1/8” (638mm) oven only 20” (508mm)
34” (863mm) incl. prep-top\
and casters
Door Swing 20" (508mm )radius
ELECTRICAL
208 VAC 3ø 60Hz 21 Amps per leg
240 VAC 3ø 60Hz 21 Amps per leg
Note: Shipped from the factory 3 phase.
Unit is NOT approved for conversion to single phase
1
Page 4
FEATURES & OPERATING CONTROLS
2
Page 5
FEATURES & OPERATING CONTROLS (continued)
ITEM DESCRIPTION FUNCTION
A. OPTIONAL PREP TOP Allows top of oven to be used as a work surface
B. OVEN TOP Covers and protects top insulation
C. OVEN DOOR Covers and provides access to oven cavity
D1. DOOR HANDLE Safe hand hold to open or close oven.
D2. DOOR STRIKER & LATCH Striker and door- mounted latch hold oven door closed
E. ACCESS PANEL Covers and provides access to fan motor and electric
connections and controls
F1. COOLING FAN INLET Provides air circulation for cooling. DO NOT spray or pour
F2. COOLING LOUVERS water into cooling fan inlet or louvers
G. POWER CORD Supplies power from receptacle to oven
H. CORD HANGER Provides storage for cord when moving oven
I. EXTERNAL CAVITY VENT Cooking fumes are vented here
J. OPTIONAL FRONT CASTERS Allow oven to be easily moved; locking to stabilize oven
when in position
K. OPTIONAL REAR CASTERS Allow oven to be easily moved.
L. POWER FUSES Protect electrical circuits from overload
M. DATA PLATE Provides manufacturer, model and serial number information.
Also, provides electrical specifications and requirements
N. POWER PLUG Plugs into power receptacle
P. HEAT ON LIGHT Glows amber when heating elements are energized
Q. ON/OFF/FAN SWITCH Turns oven and fan, or fan only, on or off
R. POWER ON LIGHT Glows red when power is turned on
S. SOLID STATE CONTROL Controls cooking times and temperatures; programmable.
DO NOT spray or pour water into controller
T. BEEPER Audible indicator for alarms, end-of-cycle, etc.
U. RACK SUPPORTS Hold cooking racks
V. PRODUCT RACK Holds product to be cooked
W. HEATING ELEMENTS Provide cooking heat when energized
X. FAN Circulates heated air during cooking
Y. FAN BAFFLE Covers fan, also provides mounting for right rack support
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Page 6
PRECAUTIONS AND GENERAL INFORMATION
WARNING:
Electric
Shock hazard
All servicing requiring
access to non-insulated
electrical components
must be performed by a
factory authorized
technician.
DO NOT open any access
panel which requires the
use of tools. Failure to
follow this warning can
result in severe electrical
shock.
CAUTION:
Risk of
Damage
DO NOT connect or
energize this appliance
until all installation
instructions are read and
followed. Damage to the
appliance will result if
these instructions are not
followed.
CAUTION:
Hot Surface
Exposed surfaces can be hot
to the touch and may cause
burns.
This appliance is intended for use in commercial establishments
only.
This appliance is intended
No other use is
agents.
Operators of this appliance must be familiar with the appliance use,
limitations and associated restrictions. Operating instructions must be
read and understood by all persons using or installing this appliance.
Cleanliness of this appliance is essential to good sanitation. Read and
follow all included cleaning instructions and schedules to ensure the
safety of the food product.
Disconnect this appliance from electrical power before performing any
maintenance or servicing.
DO NOT submerge this appliance in water. This appliance is not jet
stream approved. Do not direct water jet or steam jet at this appliance,
or at any control panel or wiring. Do not splash or pour water on, in or
over any controls, control panel or wiring. Do not wash floor around
this appliance with water or steam jet.
Exposed surfaces of this appliance can be hot to the touch and may
cause burns.
Do not operate this appliance if the control panel is damaged. Do not
operate this appliance if the keypad section of the control panel is torn
or broken. Call your Authorized Wells Service Agent for service.
The technical content of this manual, including any wiring diagrams,
schematics, parts breakdown illustrations and/or adjustment
procedures, is intended for use by qualified technical personnel.
Any procedure which requires the use of tools must be performed by a
qualified technician.
This manual is considered to be a permanent part of the appliance.
This manual and all supplied instructions, diagrams, schematics, parts
breakdown illustrations, notices and labels must remain with the
appliance if it is sold or moved to another location.
This appliance is made in the USA. Unless otherwise noted, this
appliance has American sizes on all hardware.
recommended or authorized by the manufacturer or its
to prepare food for human consumption.
AGENCY LISTING INFORMATION
STD 4
E6070
This appliance conforms to NSF Standard 4 for sanitation only if
installed in accordance with the supplied Installation Instructions and
maintained according to the instructions in this manual.
This appliance is Listed under UL File E6070 for 208V and 240V.
4
Page 7
INSTALLATION
UNPACKING & INSPECTION
Carefully remove the appliance from the carton. Remove all
protective plastic film, packing materials and accessories from the
Appliance before connecting electrical power or otherwise performing
any installation procedure.
Carefully read all instructions in this manual and the Installation
Instruction Sheet packed with the appliance before starting any
installation.
Read and understand all labels and diagrams attached to the
appliance.
Carefully account for all components and accessories before
discarding packing materials. Store all accessories in a convenient
place for later use.
COMPONENTS
3 ea. OVEN RACKS
2 ea. RACK SUPPORTS
1 ea. FAN BAFFLE
1 ea. VENT DUCT ASSEMBLY
ACCESSORIES
1 ea. LITERATURE PACKAGE
OPTIONAL ACCESSORIES
22882 Stacking and Venting Kit
SERVICE TECHNICIAN INSTALLATION NOTES
1. Installation and start up should be performed by an authorized
installation company. Installer must record installation particulars
on the CUSTOMER SERVICE DATA form on page 21 of this
manual.
2. Verify that this equipment i nstallatio n is in compliance with the
specifications listed in this manual and with local code
requirements.
NOTE: DO NOT discard
the carton or other packing
materials until you have
inspected the appliance for
hidden damage and tested it
for proper operation.
Refer to SHIPPING DAMAGE
CLAIM PROCEDURE on the
inside front cover of this
manual.
WARNING:
Risk of
personal injury
Installation procedures must
be performed by a qualified
technician with full knowledge
of all applicable electrical and
plumbing codes. Failure can
result in personal injury and
property damage.
IMPORTANT:
It is the RESPONSIBILITY
OF THE INSTALLER to
check with the AUTHORITY
HAVING JURISDICTION, in
order to verify compliance
with local codes and
ordinances for THIS
SPECIFIC EQUIPMENT
INSTALLATION.
5
Page 8
INSTALLATION (continued)
WARNING:
Electric
All servicing requiring access
to non-insulated electrical
components must be performed
by a factory authorized
technician.
DO NOT open any access
panel which requires the use
of tools. Failure to follow this
warning can result in severe
electrical shock.
NOTE: Oven is shipped with
biscuit baking adapter plate
attached to rear panel.
If oven is used exclusively for
bread products (bread, pies,
etc.), DO NOT remove adapter.
If oven is used for proteins,
remove adapter and install
external vent. Protein requires
additional venting to decrease
release of cooking vapors when
opening the door.
Vent Duct Installation
DIMENSIONS
Fabricated Mounting
Shock hazard
EQUIPMENT SET-UP
1. IF CONVECTION OVEN IS TO BE USED FOR PROTEINS,
INSTALL EXTERNAL DUCT
a. Remove two screws at each end of adapter plate on back of
oven.
b. Loosen two screws at bottom of adapter plate. Remove
adapter plate.
c. Slide bottom flange of vent duct over the two loosened screws.
D. Install four and tighten screws at ends of vent duct, then
tighten bottom screws.
2. CURB or COUNTER MOUNTING
a. Setup the appliance only on a firm, level, non-combustible
surface. Verify local codes for requirements. Concrete, tile,
terrazzo or metal surfaces are recommended. Metal over
combustible material may not meet code for non-combustible
surfaces.
b. Appliance is approved for installation with zero clearance at
bottom.
c. Recommend at least 3” clearance on sides and back to allow
adequate air flow.
3. INSTALLING OPTIONAL CASTERS
a. Install casters, one on each corner of the appliance, in the
holes provided. Locking casters must be installed on the
FRONT of the appliance.
b. Set up the appliance only on a firm, level, non-combustible
surface. Verify local codes for requirements. Concrete, tile,
terrazzo or metal surfaces are recommended. Metal over
combustible material may not meet code for non-combustible
surfaces.
c. LEVELING: Verify that the appliance sits firmly on all four
casters when in its normal operational position. With a spirit
level, check that the appliance is level front-to-back and
side-to-side.
4. INSTALLING OPTIONAL LEGS (NOTE: Legs are not provided
and must be purchased separately.)
a. Install adjustable legs, one on each corner of the appliance, in
he holes provided.
b. Set up the appliance only on a firm, level, non-combustible
surface. Verify local codes for requirements. Concrete, tile,
terrazzo or metal surfaces are recommended. Metal over
combustible material may not meet code for non-combustible
surfaces.
c. LEVELING: Verify that the appliance sits firmly ON ALL FOUR
LEGS. With a spirit level, check that the appliance is level
front-to-back and side-to-side.
5. INSTALLING ON FABRICATED MOUNTING
a. Mounting must be capable of safely supporting 350 pounds
(165 Kg.), and must be fabricated to the dimensions shown at
left:
b. Attach the appliance securely to the mounting with
four 3/4”-10 x 1” bolts.
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Page 9
INSTALLATION (continued)
DANGER: ELECTRICAL SHOCK HAZARD
ELECTRICAL CONNECTIONS MUST BE MADE BY A
LICENSED ELECTRICIAN
Electrical shock will cause death or serious injury.
Refer to the nameplate on the front of the appliance.
• Verify the ELECTRICAL SERVICE POWER.
• Voltage and phase must match the nameplate specifications, and
available electrical service amperage must meet or exceed the
specifications listed on page 1.
• Wiring must be no less than 4 AWG solid copper wire, rated for at
least 90ºC.
NOTE: Wire gauge, insulation type and temperature rating , as well as
type, size and construction of conduit, must meet or exceed applicable
specifications of local codes and of the National Electrical Code.
This appliance is equipped with a Hubble™ L430P9 plug, which must
be plugged into a matching Hubble™ L430R9 receptacle. The ground
lug of the receptacle must be connected to a suitable building ground.
IMPORTANT:
The appliance is shipped from the factory wired for 3-phase (3ø)
electrical service. This appliance is not approved for 1ø operation.
Conversion of this appliance to single-phase operation will void the
warranty
CAUTION:
Risk of
DO NOT connect or energize
this appliance until all
installation instructions are
read and followed. Damage
to the appliance will result if
these instructions are not
Damage
followed.
CAUTION:
Electrical Shock
Hazard
The ground lug of this
appliance must be connected
to a suitable building ground.
IMPORTANT:
Contact a licensed electrician
to install and connect
electrical power to the
appliance.
IMPORTANT:
Damage due to being
connected to the wrong
voltage or phase is NOT
covered by warranty.
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Page 10
OPERATION
CAUTION:
Hot Surface
Exposed surfaces can be hot
to the touch and may cause
burns.
IMPORTANT: Failure to
press the TEMP key within 30
seconds of programming the
new oven set temperature will
cause the controller to revert
to original temperature setting
and delete latest
changes.
SET TEMPERATURE
1. Make su re the power cord is plugged into the appropriate power
supply receptacle.
2. Place the ON/OFF/FAN swit ch in the ON position.
NOTE: No display will be present until the TEMP key is pressed.
3. Press the TEMP key mom entarily to display the current oven
temperature. The display will hold for 5 seconds.
4. Press the TEMP button an d hold for 3 seconds. The current set
temperature will display and flash. The controller is now in the
programming mode.
5. Use the 3 SET keys to set hundreds, tens and o ne s for the
desired oven set temperature. The corresponding digit on the
digital readout will increase from 0 to 9. Release the SET key
when the desired digit is displayed.
6. Press the TEMP key to exit the programming mode. The new
set temperature will automatically be stored in memory.
7. The maximum temperatur e to which the controller can be
programmed is 500ºF (260ºC). Any attempt to set the oven
temperature higher than 500ºF (260ºC) will cause the controller to
reset the temperature to 500ºF (260ºC).
NOTE: The "actual temperature" displayed may read higher than set
point during pre-heat until oven temperature has stabilized.
SET TIMER
1. Make sure the power cord is plugged into the appropriate power
supply receptacle.
2. Place the ON/OFF/FAN swit ch in the ON position.
3. In the IDLE mode, the digital displays wil l be at “low” intensity, and
will brighten while active and counting down. Verify that the time
being displayed on each of the timer digital displays is correct.
If not, proceed as follows:
4. Example: Set TIMER 1
With the timer in IDLE mode (low intensity, not counting down)
a. Press and hold TIMER key 1 and SET key for ONES.
The right digit of timer display 1 will brighten and begin to cycle
through 0 to 9. Release both keys when the desired digit is
reached.
b. Press and hold TIMER key 1 and SET key for TENS.
The left digit of timer display 1 will brighten and begin to cycle
through 0 to 9. Release both keys when the desired digit is
reached. When the keys are released, the display will return
to IDLE mode and the new settings will be retained in memory.
5. TIMER keys 2 through 6 may be set in the same manner.
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OPERATION (continued)
DAILY SET-UP PROCEDURES
1. Make sure the power cord is plugged into the appropriate
power supply receptacle.
2. Recommended shelf positions for quality baked products:
NO. OF PANS RACK POSITION
OF PRODUCT UTILIZED
1 5
2 2 & 8
3 2, 5 & 8
3. Place the ON/OFF/FAN switch in the ON position. The green
POWER ON light will glow.
4. Check oven set temperatu r e. Press and hold the TEMP key for 5
seconds or until the screen flashes the current set temperature.
If this is not right, refer to and follow the step-by-step procedure
for ”Set Temperature”, page 8.
5. If the oven set temperature is co rrect, press the key again to clear
the display.
6. Ensure that the door is closed. The amber HEAT light will glow,
indicating that the heaters are on.
7. Allow the oven to preheat for 30 minutes.
8. When the amber HEAT light goes out, the oven is ready to use.
From then on the amber HEAT light will cycle on and off with the
heaters (i.e. light will glow when the heaters are on).
9. Check to see that the timers are set for the correct times. If not, see
“Set Timer”, page 8.
D. OVEN OPERATION
1. Make sure the power cord is plugged into the appropriate power
supply receptacle.
2. Place the ON/OFF/FAN swit ch in the ON position.
3. Verify that the time being displayed on each of the timer digital
displays is correct. If not, see “Set Timer”, page 8.
4. To start a product coo k timer, pre s s the corresponding PRODUCT
COOKING TIMER key once.
The digital display will brighten and a timing dot will appear in the
lower right-hand corner of the display. The timer will automatically
begin to countdown. The timer display will show the time remaining
in the cook cycle.
5. When the timer reaches “00”, a three-tone audible alarm will sound,
and the display will blink.
6. To stop the audible alarm, or to cancel a timer operation, press the
corresponding PRODUCT COOKING TIMER key once.
The display will change to IDLE mode (low intensity), the timing
indicator dot will turn off, and the audible tone will be cancelled.
CAUTION:
Hot Surface
Exposed surfaces can be hot
to the touch and may cause
burns.
SUGGESTION: The product
timer can be used for timing
the preheat time.
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Page 12
CLEANING INSTRUCTIONS
CAUTION:
Electric Shock
Hazard
Disconnect appliance from
electric power
before cleaning.
CAUTION:
Burn Hazard
Allow appliance to cool completely before
cleaning.
Do not attempt to clean the
oven until it has cooled to
150ºF or less. It can burn
you. Hand protection is
required.
CAUTION:
Cut Hazard
FAN BLADES ARE
SHARP. Use due care
when cleaning and/or
wiping.
IMPORTANT: DO NOT spill
or pour water into controls,
control panel or wiring.
Damage to internal
components from water
damage is not covered by
warranty.
PREPARATION Allow oven to cool to 150ºF or less
FREQUENCY Daily
TOOLS Fiber Brush,
Mild Detergent, McD Sanitizer,
Clean Towel
CLEANING
1. Turn POWER SWITCH to FAN. With the door held open, allow the
oven to cool. When the oven interior has cooled to 150ºF or less,
turn the POWER SWITCH to OFF.
2. Remove racks and rack supports. Remove fan baffle.
3. Brush the fan wheel and wipe it with a moist cloth. Sponge out all
loose particles.
4. Wipe down the entire interior using a clean cloth moistened with
hot water and a mild detergent. Rinse by wiping with a clean towel
moistened with sanitizer.
IMPORTANT: Always wipe or rub in the direction of the polish
lines or grain of the metal.
5. Clean oven racks and rack supports in a sink or dishwasher.
6. Reinstall the fan baffle, paying particular attention that the lip on
the right side of the fan baffle is fully seated in the slot in the edge
of the oven cavity. Reinstall rack supports and racks.
IMPORTANT: Take care to avoid damage to fan blades
when reinstalling fan baffle.
7. Turn power switch to FAN . Verify that fan runs smoothly and does
not contact fan baffle. Turn power switch to OFF. Reposition fan
baffle if necessary.
8. Wipe down the prep top and exterior of the oven using a clean
cloth moistened with hot water and a mild detergent. Rinse by
wiping with a clean towel moistened with sanitizer.
IMPORTANT: Always wipe or rub in the direction of the polish
lines or grain of the metal.
9. Replace oven rack supports. Leave the door open overnight.
PROCEDURE IS COMPLETE
Assembling Fan Baffle
& Rack Support
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Page 13
CLEANING INSTRUCTIONS (continued)
PREPARATION Allow oven to cool to 150ºF or less
FREQUENCY Weekly
TOOLS Fiber Brush, Plastic Scouring Pad, Plastic Scraper
Mild Detergent, McD Sanitizer,
APC All Purpose Cleaner, Clean Towel
CLEANING
1. Turn POWER SWITCH to FAN. With the door held open, allow the
oven to cool. When the oven interior has cooled to 150ºF or less,
turn the POWER SWITCH to OFF.
2. Remove racks and rack supports. Remove fan baffle.
3. Brush the fan wheel and wipe it with a moist cloth. Sponge out all
loose particles.
4. Scrub entire interior of convection oven with a plastic scouring pad
and APC cleaner.
5. For baked-on food spills, apply APC cleaner. Close the oven
door, place the ON/OFF/FAN switch in the OFF position. Let
stand for 10 minutes. Carefully wipe all cleaner and food residue
from all interior surfaces. Wipe with sanitizer.
6. Wipe down the entire interior using a clean cloth or moistened with
hot water and a mild detergent. Rinse by wiping with a clean towel
moistened with sanitizer.
IMPORTANT: Always wipe or rub in the direction of the polish
lines or grain of the metal.
7. Clean oven racks and rack supports in a sink or dishwasher.
8. Reinstall the fan baffle, paying particular attention that the lip on
the right side of the fan baffle is fully seated in the slot in the edge
of the oven cavity. Reinstall rack supports and racks.
IMPORTANT: Take care to avoid damage to fan blades
when reinstalling fan baffle.
9. Turn power switch to FAN . Verify that fan runs smoothly and does
not contact fan baffle. Turn power switch to OFF. Reposition fan
baffle if necessary.
10. Wipe down the prep top and exterior of the oven using a clean
cloth moistened with hot water and a mild detergent. A plastic
scouring pad may be used to removed baked-on food debris.
Rinse by wiping with a clean towel moistened with sanitizer.
IMPORTANT: Always wipe or rub in the direction of the polish
lines or grain of the metal.
11. Replace oven rack supports. Leave the door open overnight.
PROCEDURE IS COMPLETE
CAUTION:
Electric Shock
Hazard
Disconnect appliance from
electric power
before cleaning.
CAUTION:
Burn Hazard
Allow appliance to cool completely before
cleaning.
Do not attempt to clean the
oven until it has cooled to
150ºF or less. It can burn
you. Hand protection is
required.
CAUTION:
Cut Hazard
FAN BLADES ARE
SHARP. Use due care
when cleaning and/or
wiping.
IMPORTANT: DO NOT spill
or pour water into controls,
control panel or wiring.
Damage to internal
components from water
damage is not covered by
warranty.
Assembling Fan Baffle
& Rack Support
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Page 14
PREVENTATIVE MAINTENANCE
CAUTION:
Burn Hazard
Allow appliance
to cool completely before
adjusting.
Hinge Adjustment
HINGE ADJUSTMENT
PRECAUTIONS: None
FREQUENCY: Monthly, at a Minimum; or, As Needed
TOOLS: Phillips (+) Screwdriver
7/16" Nut Driver
7/8" and 1-1/8" Wrenches
THE FOLLOWING PROCEDURE IS TO BE
PERFORMED BY QUALIFIED PERSONNEL ONLY
1. Remove bottom panel to access pivot.
2. Gap between top of door and frame , and between bottom
of door and frame must be approximately equal
Adjust height of door by loosening jamb nut, then turning
pivot on its screw mounting. Clockwise lowers the door
height. Re-tighten jamb nut .
3. Gap between left side of door and frame must be the
same from top to bottom
Adjust door for plumb by loosening holding screws. Turn
adjusting bolt to increase or decrease gap at bottom.
Clockwise increases gap. Re-tighten holding screws.
4. Gap between top of door and frame must be the same
from side to side
Adjust door for level by loosening holding screws, then
raising or lowering latch-end of door until it is level.
Re-tighten holding screws.
5. Reinstall bottom panel.
Procedure is complete
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CAUTION: Electrical Shock Hazard
Removal of any cabinet panel will result in exposed electrical circuits.
Any procedure requiring the removal of any cabinet panel must be performed
by a qualified technician only.
CAUTION: Electrical Shock Hazard
Fuse replacement may expose dangerous voltages.
Fuse replacement must be performed by a qualified technician.
TROUBLESHOOTING SUGGESTIONS
SYMPTOM
No power to appliance
Oven will not heat
Blower fan will not run
Door pops open during
cook cycle
POSSIBLE CAUSE
Circuit breaker off or tripped
Power cord unplugged or damaged
Fuse blown or loose
Power switch turned to OFF or FAN
Temperature control not set
Oven door not closed
Hi-limit control tripped on excessive
oven temperature
Damaged controller
Fan switch OFF
Damage to internal components
Latch out of adjustment
SUGGESTED REMEDY
Reset circuit breaker
Check power cord
Plug in or repair as required
Check power fuses. If blown,
correct problem and replace
fuses
Turn power switch ON
Set to desired temperature
Be sure door is closed and
latched
Allow oven to cool
Hi-limit will reset
Contact Authorized Wells
Service Agency for repairs
Turn fan switch to HIGH or
LOW
Contact Authorized Wells
Service Agency for repairs
Adjust latch
NOTE: There are no user
serviceable components in the
appliance. In all cases of
damage or component
malfunction, contact your
Authorized Wells Service
Agency for repairs.
13
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EXPLODED VIEW and PARTS LIST
14
Page 17
EXPLODED VIEW and PARTS LIST (continued)
ITEM DESCRIPTION SVC P/N QTY
1 ASSY, CAVITY 1
6 PANEL, CONTROL 69763 1
10 BRACKET, MOTOR MOUNT 1
13 BRACKET, CAVITY SUPPORT 2
14 GROMMET, 7/8" O.D. 51040 2
15 INSULATION, TOP & BOTTOM 2
16 INSULATION, WRAP 1
17 ASSY, BAFFLE SUPPORT 2
19 MOUNT, TEMP SENSORS 1
20 COVER, DOOR GASKET 4
21 CLIP, RACK SUPPORT 63889 8
22 HANDLE ASSEMBLY 1
23 LIGHT, SIGNAL “HEAT” 65145 1
24 BRACKET, HI-LIMIT THERMO 1
29 ASSY, DOOR COMPLETE 504444 1
30 GASKET, DOOR, SIDE 63819 2
35 GASKET, DOOR, TOP/BOT 63817 2
36 ASSY, OVEN TOP 1
38 HANGER, CORD 1
39 PANEL, EXTERIOR SIDE 2
40 TRIM, RIGHT FRONT 1
42 ASSY, FRAME 1
44 SLEEVE, DOOR HINGE 63900 1
47 GUARD, PROX. SWITCH 65647 1
50 DOOR STRIKER 505616 1
51 DOOR LATCH 505615 1
52 BUSHING, TOP DOOR HINGE 505619 1
54 PIN, HINGE, DOOR TOP AND BOTTOM 63912 2
55 ASSY, BOT DOOR HINGE 63896 1
56 PANEL, REAR 1
57 ASSY, VENT DUCT 1
58 TRIM, LOWER FRONT 63804 1
59 BRACKET, PROX SWITCH 63787 1
60 PLATE, DOOR PIVOT 63899 1
68 PLATE, DOOR HINGE PIN 2
69 PLATE, DOOR PIVOT HOLE 63899 1
80 NUT, HEX 3/4-10 UNC 1
81 BISCUIT BAKING ADAPTER 505523 1
82 ASSY, EXTERIOR VENT DUCT 505504 1
90 WIRE SET (not shown) 1
92 TIE, WIRE, STANDOFF (not shown) 2
101 BAFFLE, OVEN 1
102 RACK, PRODUCT 21376 3
103 SUPPORT, RACK (pk 2) 21375 2
cc CLIP, TINNERMAN (pk 50) 57943
A CASTER, LOCKING (FRONT) 21373 2
B CASTER, SWIVEL (REAR) 21372 2
C PREP TOP 21445 1
CLIP, PREP TOP 4
a SCREW, 8-32 x 1/2 FH p NUT, HEX 8-32 KEP
g SCREW, 8-32 x 1/2 SS q SCREW, 8-32 x 1/2 PH SS
h SCREW, 8-32 x 7/8 Pan r SCREW, 10-32 x 1/2 PH SS
j SCREW, 10-32 x 1-1/2 FH s WASHER, FLAT 1/4
k SCREW, 1/4-20 x 5/8 RH t WASHER, LOCK #8
m BOLT, 1/4-20 x 3/4 HEX v WASHER, FLAT #8
n BOLT, 1/4-20 x 1-1/4 HEX z NUT, HEX 10-32
15
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EXPLODED VIEW and PARTS LIST (continued)
M4200-3SV
16
Page 19
EXPLODED VIEW and PARTS LIST (continued)
ITEM DESCRIPTION SVC P/N QTY
1 ASSY, CAVITY 1
2 TERMINAL BLOCK, 3 POLE 50131 1
3 SPACER, BLOWER MOTOR 4
4 LUG, SOLDERLESS 1
5 FAN, COOLING 64687 1
6 PANEL, CONTROL 69763 1
7 MOTOR, 1/4 HP 63932 1
7.1 START CAPACITOR 69823 1
7.2 BRACKET, START CAPACITOR 500933 1
8 SPACER, MOTOR MOUNT 4
9 BLOWER WHEEL 63797 1
10 BRACKET, MOTOR MOUNT 1
11 TRANSFORMER, 240V - 16V 63929 1
12 RELAY, ESAFE 230V 3ø 504892 1
14 GROMMET, 7/8" O.D. 51040 2
18 RELAY, 208/240V SPNO 63880 1
24 BRACKET, HI-LIMIT THERMO 1
25 THERMOSTAT, HI-LIMIT 65180 1
26 THERMOCOUPLE 63927 1
27 LIGHT, SIGNAL “POWER” 65146 1
28 LABEL, GROUND SYMBOL 64584 1
31 ASSY, PROXIMITY SWITCH 65239 1
34 FUSEHOLDER, 10A 240V 54769 2
42 ASSY, FRAME 69775 1
43 FUSE, 10A 240V 54871 2
59 BRACKET, PROX SWITCH 63787 1
62.1 INNER ELEMENT, 208V (4" GAP) 63872 1
62.2 INNER ELEMENT, 240V (4" GAP) 63783 1
63.1 MIDDLE ELEMENT, 208V (2.5" GAP) 63866 1
63.2 MIDDLE ELEMENT, 240V (2.5" GAP) 63800 1
64.1 OUTER ELEMENT, 208V (1" GAP) 63873 1
64.2 OUTER ELEMENT, 240V (1" GAP) 63949 1
65 BOOT, CLEAR SILICON 67438 1
66 ASSY, POWER CORD 1
67 STRAIN RELIEF 68754 1
67.1 NUT (ONLY), STRAIN RELIEF 65504
70 GASKET, ELEMENT 63834 1
71 COVER, ELEMENT GASKET INNER 63836 1
72 COVER, ELEMENT GASKET OUTER 63837 1
81 OVEN CONTROLER 64964 1
81.1 OVERLAY, CONTROLLER 500975 1
89 SWITCH, ON/OFF 63918 1
90 WIRE SET (not shown) 1
91 SLEEVING, FIBREGLASS (not shown) 1
92 TIE, WIRE, STANDOFF (not shown) 2
93 OP. MANUAL M4200 (not shown) Lit 45633 1
a SCREW, 8-32 x 1/2 FH p NUT, HEX 8-32 KEP
b SCREW, 4-40 x 3/8 RH q SCREW, 8-32 x 1/2 PH SS
c WASHER, FLAT #4 t WASHER, LOCK #8
d WASHER, LOCK #4 u SCREW, 8-32 x 3/8 PH PAN
e NUT, HEX 4-40 v WASHER, FLAT #8
f SCREW, 8-32 x 2 PH y SCREW, 6-32 x 7/8 SS
g SCREW, 8-32 x 1/2 SS z NUT, HEX 10-32
h SCREW, 8-32 x 7/8 PAN aa FENDER WASHER, #8
cc CLIP, TINNERMAN (pk 50) 57943 dd SCREW, 10-32 x 1/2 PH TRUSS
17
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WIRING DIAGRAM
18
Page 21
PARTS & SERVICE
DESCRIPTION PART NO.
CASTER SET, OVEN (set of 4) 21330
OVEN STACKING KIT 21342
CASTER, SWIVEL (set of 2) 21372
CASTER, LOCKING (set of 2) 21373
OVEN RACK, REPLACEMENT (ea.) 21376
PREP TOP 21445
WALL SPACER KIT 21717
LEG KIT, OVEN, S/S (set of 4) 22226
IMPORTANT: Use only
factory authorized service
parts and replacement
.
filters
For factory authorized
service, or to order factory
authorized replacement
parts, contact your Wells
authorized service agency,
or call:
Wells Manufacturing Co
.
2 Erik Circle
P. O. Box 280
Verdi, NV 89439
phone: (775) 345-0444
fax: (888) 492-2783
(Service Parts Dept.)
Service Parts Department
can supply you with the
name and telephone
number of the WELLS
AUTHORIZED SERVICE
AGENCY nearest you.
CUSTOMER SERVICE DATA
RESTAURANT _____________________________ LOCATION _____________
INSTALLATION DATE ________________________ TECHNICIAN ___________
SERVICE COMPANY ________________________________________________
ADDRESS ___________________________ STATE ______ ZIP__________
TELEPHONE NUMBER (_____)_____-_________
EQUIPMENT MODEL NO. _______________
EQUIPMENT SERIAL NO. _______________
VOLTAGE: (check one) 208 480
please have this information available if calling for service
19
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PREPARED FOR
BY
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