Frymaster, a member of the Commercial Food Equipment Service Association, recommends using
CFESA Certified Technicians.
24-Hour Service Hotline 1-800-551-8633
*8196344*
www.frymaster.com E-mail: service@frymaster.com
APRIL 2008
NOTICE
IF, DURING THE WARRANTY PERIOD, THE CUSTOMER USES A PART FOR THIS ENODIS
EQUIPMENT OTHER THAN AN UNMODIFIED NEW OR RECYCLED PART PURCHASED DIRECTLY
FROM FRYMASTER DEAN, OR ANY OF ITS AUTHORIZED SERVICE CENTERS, AND/OR THE
PART BEING USED IS MODIFIED FROM ITS ORIGI NAL CONFIGUR ATION, THI S WARRANTY WI LL
BE VOID. FURTHER, FRYMASTER DEA N AND ITS AFFILIATES WILL NOT BE LIABLE FOR ANY
CLAIMS, DAMAGES OR EXPENSES INCURRED BY THE CUSTOMER WHICH ARISE DIRECTLY OR
INDIRECTLY, IN WHOLE OR IN PART, DUE TO THE INSTALLATION OF ANY MODIFIED PART
AND/OR PART RECEIVED FROM AN UNAUTHORIZED SERVICE CENTER.
DANGER
Copper wire suitable for at least 167°F (75°C) must be used for power connections.
DANGER
The electrical power supply for this appliance must be the same as indicated on the rating and
serial number plate located on the inside of the fryer door.
DANGER
This appliance must be connected to the voltage and phase as specified on the rating and serial
number plate located on the inside of the fryer door.
DANGER
All wiring connections for this appliance must be made in accordance with the wiring diagrams
furnished with the equipment. Wiring diagrams are located on the inside of the fryer door.
DANGER
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any
other appliance.
WARNING
Do not attach accessories to this fryer unless fryer is secured from tipping. Personal injury may
result.
WARNING
Frymaster fryers equipped with legs are for permanent installations. Fryers fitted with legs
must be lifted during movement to avoid damage and possible bodily injury. For a moveable or
portable installation, Frymaster optional equipment casters must be used.
Questions? Call 1-800-551-8633 or email at service@frymaster.com.
WARNING
Do not use water jets to clean this equipment.
WARNING
This equipment is intended for indoor use only. Do not install or operate this equipment in
outdoor areas.
i
DANGER
Adequate means must be provided to limit the movement of this appliance without depending
on or transmitting stress to the electrical conduit. A restraint kit is provided with the fryer. If
the restraint kit is missing contact your local KES.
DANGER
Prior to movement, testing, maintenance and any repair on your Frymaster fryer, disconnect all
electrical power from the fryer.
Before performing any maintenance on your Frymaster fryer, disconnect the fryer from the electrical
power supply.
To ensure the safe and efficient operation of the fryer and hood, the electrical plug
must be fully engaged and locked in its pin and sleeve socket.
When electrical wires are disconnected, it is recommended that they be marked in such a way as to
facilitate re-assembly.
1.2 Replacing a Computer
1. Disconnect the fryer from the electrical power supply.
2. The controller bezel is held in place by tabs at the top and bottom. Slide the metal bezel up to
disengage the lower tabs. Then slide the bezel down to disengage the upper tabs.
3. Remove the two screws from the upper corners of the control panel. The control panel is hinged at
the bottom and will swing open from the top.
4. Unplug the wiring harnesses from the connectors on the back of the computer, marking their
position for reassembly, and disconnect the grounding wires from the terminals. Remove the
control panel assembly by lifting it from the hinged slots in the control panel frame.
WARNING
Ground Wire Terminal
Communication Wires
Ground Wire Terminal
20-Pin Connecto
Locator Wire
5. Remove the controller from the control panel assembly and install the replacement computer.
Reinstall the control panel assembly by reversing steps 1 thru 4.
1.3 Replacing Component Box Components
1. Disconnect the fryer from the electrical power supply.
2. The controller bezel is held in place by tabs at the top and bottom. Slide the metal bezel up to
disengage the lower tabs. Then slide the bezel down to disengage the upper tabs.
3. Remove the two screws from the upper corners of the control panel and allow the control panel to
swing down.
1-1
4. Unplug the wiring harnesses and disconnect the grounding wires from the terminals on the back of
the controller. Remove the control panel assembly by lifting it from the hinge slots in the control
panel frame.
5. Disconnect the wiring from the component to be replaced, being sure to make a note of where each
wire was connected.
6. Dismount the component to be replaced and install the new component, being sure that any
required spacers, insulation, washers, etc. are in place.
NOTE: If more room to work is required, the control panel frame assembly may be removed by
removing the hex-head screws, which secure it to the fryer cabinet (see illustration below). If this
option is chosen, all control panel assemblies must be removed per steps 1 and 2 above. The cover
plate, on the lower front of the component box, may also be removed to allow additional access if
desired. Removing the component box itself from the fryer is not recommended due to the difficulty
involved in disconnecting and reconnecting the oil-return valve rods, which pass through openings
in the component box.
Remove these three
screws at each end.
Remove these two screws
from the center supports.
Removing the Control Panel Frame and Top Cap Assembly
7. Reconnect the wiring disconnected in step 5, referring to your notes and the wiring diagrams on
the fryer door to ensure that the connections are properly made. Also, verify that no other wiring
was disconnected accidentally during the replacement process.
8. Reverse steps 1 through 4 to complete the replacement and return the fryer to service.
1-2
1.4 Replacing a High-Limit Thermostat
1. Remove the filter pan and lid from the unit. Drain the frypots into a Shortening Disposal Unit
(SDU) or other appropriate METAL container.
DANGER
DO NOT drain more than one full frypot into the SDU at one time.
2. Disconnect the fryer from the electrical power supply and reposition it to gain access to the rear of
the fryer.
3. Remove the screws from the bottom of the lower back panel attaching the contactor plug guards.
4. Remove each of the guards.
5. Remove the four screws from both the left and right sides of the lower back panel.
6. Locate the high-limit that is being replaced and follow the two-black wires to the 12-pin connector
C-6. Note where the leads are connected prior to removing them from the connector. Unplug the
12-pin connector C-6 and using a pin-pusher push the pins of the high-limit out of the connector.
7. Carefully unscrew the high-limit thermostat to be replaced.
8. Apply Loctite™ PST 567 or equivalent sealant to the threads of the replacement and screw it
securely into the frypot.
9. Insert the leads into the 12-pin connector C-6 (see illustration below). For full-vats the leads go
into positions 1 and 2 of the connector. Polarity does not matter.
10. Reconnect the 12-pin connecting plug C-6. Use wire ties to secure any loose wires.
11. Reinstall the back panels, contactor plug guards, reposition the fryer under the exhaust hood, and
reconnect it to the electrical power supply to return the fryer to service.
1.5 Replacing a Temperature Probe
1. Remove the filter pan and lid from the unit. Drain the frypots into a Shortening Disposal Unit
(SDU) or other appropriate METAL container.
DANGER
DO NOT drain more than one full frypot into the SDU at one time.
1-3
2. Disconnect the fryer from the electrical power supply and reposition it to gain access to the rear of
the fryer.
3. Remove the screws from the bottom of the lower panel attaching the contactor plug guards.
4. Remove each of the guards.
5. Remove the four screws from both sides of the lower back panel. Then remove the two screws on
both the left and right sides of the back of the tilt housing. Lift the tilt housing straight up to
remove from the fryer.
6. Locate the red and white wires of the temperature probe to be replaced. Note where the leads are
connected prior to removing them from the connector. Unplug the 12-pin connector C-6 and using
a pin-pusher push the pins of the temperature probe out of the connector.
7. Raise the element and remove the securing probe bracket and metal tie wraps that secure the probe
to the element (see illustration below).
8. Gently pull on the temperature probe and grommet, pulling the wires up the rear of the fryer and
through the element tube assembly.
9. Insert the replacement temperature probe (wires first) into the tube assembly ensuring that the
grommet is in place. Secure the probe to the elements using the bracket which was removed in
Step 7 and the metal tie wraps which were included in the replacement kit.
10. Route the probe wires out of the tube assembly following the element wires down the back of the
fryer through the Heyco bushings to the 12-pin connector C-6. Secure the wires to the sheathing
with wire ties.
11. Insert the temperature probe leads into the 12-pin connector C-6 (see illustration below). For full-
vat units, the red lead goes into position 3 and the white lead into position 4 of the connector.
1-4
12. Secure any loose wires with wire ties, making sure there is no interference with the movement of
the springs. Rotate the elements up and down, making sure movement is not restricted and that the
wires are not pinched.
13. Reinstall the tilt housing, back panels and contactor plug guards. Reposition the fryer under the
exhaust hood, and reconnect it to the electrical power supply to return the fryer to service.
1.6 Replacing a Heating Element
1. Perform steps 1-5 of section 1.5, Replacing a Temperature Probe.
2. Disconnect the wire harness containing the probe wiring. Using a pin pusher, disconnect the probe
wires from the 12-pin connector C-6.
3. In the rear of the fryer, disconnect the 6-pin connector for the left element (as viewed from the
front of the fryer) or the 9-pin connector for the right element from the contactor box. Press in
on the tabs on each side of the connector while pulling outward on the free end to extend the
connector and release the element leads (see photo below). Pull the leads out of the connector and
out of the wire sleeving.
4. Raise the element to the full up position and support the elements.
5. Remove the hex head screws and nuts that secure the element to the tube assembly and pull the
element out of the frypot. NOTE: Full-vat elements consist of two dual-vat elements clamped
together. For full-vat units, remove the element clamps before removing the nuts and screws that
secure the element to the tube assembly.
6. If applicable, recover the probe bracket and probe from the element being replaced and install
them on the replacement element. Install the replacement element in the frypot, securing it with the
nuts and screws removed in Step 5 to the tube assembly. Ensure the gasket is between the tube and
element assembly.
7. Route the element leads through the element tube assembly and into the wire sleeving to prevent
chafing. Ensure that the wire sleeving is routed back through the Heyco bushings, keeping it clear
from the lift springs. Also ensure that the wire sleeving extends into the tube assembly, protecting
the wires. Press the pins into the connector in accordance with the diagram on the following page,
and then close the connector to lock the leads in place. NOTE: It is critical that the wires be
routed through the sleeving to prevent chafing.
1-5
Index Marker marks
Position 1
14253
14253
6
5L 4L6L1L2L3L
6
789
5
6
4R
R
R
2
1R
3R
R
8. Reconnect the element connector ensuring that the latches lock.
9. Insert the temperature probe leads into the 12-pin wiring harness connector C-6 (see illustration
below). For full-vat units the red lead goes into position 3 and the white into position 4.
10. Reconnect the 12-pin connector C-6 of the wiring harness disconnected in Step 2.
11. Lower the element down onto the basket rack.
12. Reinstall the tilt housing, back panels and contactor plug guard. Reposition the fryer under the
exhaust hood, and reconnect it to the electrical power supply.
1.7 Replacing Contactor Box Components
1. If replacing a contactor box component, remove the filter pan and lid from the unit.
2. Disconnect the fryer from the electrical power supply.
3. Remove the two screws securing the cover of the contactor box. The contactor boxes above the
filter pan are accessed by sliding under the fryer. They are located to the left and right above the
guide rails (see photo on following page).
1-6
Remove two screws to access contactor box components above the filter
pan
.
4. The contactors and relays are held on by threaded pin studs so that only removal of the nut is
required to replace the component.
5. After performing necessary service, reverse steps 1-4 to return the fryer to operation.
Left and right views of mechanical contactor box components.
1.8 Replacing a Frypot
1. Drain the frypot into the filter pan or, if replacing a frypot over the filter system, into a Shortening
Disposal Unit (SDU) or other appropriate METAL container. If replacing a frypot over the filter
system, remove the filter pan and lid from the unit.
DANGER
DO NOT drain more than one full frypot into the SDU at one time.
2. Disconnect the fryer from the electrical power supply and reposition it to gain access to both the
front and rear.
3. Slide the metal bezel up to release the bottom tabs, then slide the bezel down to disengage the
upper tabs.
4. Remove the two screws from the upper corners of the control panels and allow them to swing
down (see photo on page 1-1).
1-7
5. Unplug the wiring harnesses and ground wires from the backs of the controllers. Remove the
controllers by lifting them from the hinge slots in the control panel frame.
6. Remove the screws from the bottom of the lower back panel attaching the contactor plug guards.
7. Remove each of the guards
8. Remove the tilt housing and back panels from the fryer. The tilt housing must be removed first in
order to remove the upper back panel.
9. To remove the tilt housing, remove the hex head screws from the rear edge of the housing. The
housing can be lifted straight up and off the fryer.
10. Remove the control panel by removing the screws on both sides.
11. Loosen the component boxes by removing the screws, which secure them in the cabinet.
12. Remove the top cap by removing the nuts at each end that secure it to the cabinetry.
13. Remove the hex head screw that secures the front of the frypot to the cabinet cross brace.
14. Remove the top-connecting strip that covers the joint with the adjacent frypot.
15. Unscrew the nut located on the front of each section of drain tube, and remove the tube assembly
from the fryer.
16. Remove the covers from the drain safety switch(es) and disconnect the wiring at the switch(es).
17. Disconnect any auto top-off sensors and wiring.
18. At the rear of the fryer, unplug the 12-pin connector C-6 and, using a pin pusher, disconnect the
high-limit thermostat leads.
19. Disconnect the oil return and top off flexline(s).
20. Raise the elements to the “up” position and disconnect the element springs.
21. Remove the machine screws and nuts that secure the element tube assembly to the frypot.
Carefully lift the element assembly from the frypot and secure it to the cross brace on the rear of
the fryer with wire ties or tape.
22. Carefully lift the frypot from the fryer and place it upside down on a stable work surface.
23. Recover the drain valve(s), oil return flexline connection fitting(s), auto top-off sensors and high-
limit thermostat(s) from the frypot. Clean the threads and apply Loctite
™
PST 567 or equivalent
sealant to the threads of the recovered parts and install them in the replacement frypot.
24. Carefully lower the replacement frypot into the fryer. Reinstall the hex head screw removed in
step 9 to attach the frypot to the fryer.
25. Position the element tube assembly in the frypot and reinstall the machine screws and nuts
removed in step 21.
1-8
26. Reconnect the oil return and auto top off flexlines to the frypot, and replace aluminum tape, if
necessary, to secure heater strips to the flexlines.
27. Insert the high-limit thermostat leads disconnected in step 18 (see illustration on page 1-3 for pin
positions).
28. Reconnect the auto top-off sensors.
29. Reconnect the drain safety switch wiring to the switch(es) in accordance with the diagram below
then reinstall the switch covers.
30. Reinstall the drain tube assembly.
31. Reinstall the top connecting strips, top cap, tilt housing, back panels and contactor plug guards.
32. Reinstall controllers in the control panel frame and reconnect the wiring harnesses and ground
wires.
33. Reposition the fryer under the exhaust hood and reconnect it to the electrical power supply.
1.9 Built-in Filtration System Service Procedures
1.9.1 Filtration System Problem Resolution
One of the most common causes of filtration problems is placing the filter paper on the bottom of the
filter pan rather than over the filter screen.
CAUTION
Ensure that filter screen is in place prior to filter paper placement and filter pump
operation. Improper screen placement is the primary cause of filtration system
malfunction.
Whenever the complaint is “the pump is running, but no oil is being filtered,” check the installation of
the filter paper, and ensure that the correct size is being used. While you are checking the filter paper,
verify that the O-rings on the pick-up tube of the filter pan are in good condition. A missing or worn
O-ring allows the pump to take in air and decrease its efficiency.
If the pump motor overheats, the thermal overload will trip and the motor will not start until it is reset.
If the pump motor does not start, press the red reset switch (button) located on the rear of the motor.
If the pump starts after resetting the thermal overload switch, then something is causing the motor to
overheat. A major cause of overheating is when several frypots are filtered sequentially, overheating
the pump and motor. Allow the pump motor to cool at least 30 minutes before resuming operation.
Pump overheating can be caused by:
1-9
• Solidified shortening in the pan or filter
Sediment Particle
lines, or
• Attempting to filter unheated oil or
shortening (cold oil and shortening are
Oil Flow
more viscous, overloading the pump
motor and causing it to overheat).
If the motor runs but the pump does not return
oil, there is a blockage in the pump. Incorrectly
sized or installed paper will allow food particles
and sediment to pass through the filter pan and
Sediment Particle
Up for reverse
into the pump. When sediment enters the pump,
the gears bind, causing the motor to overload,
again tripping the thermal overload. Shortening
that has solidified in the pump will also cause it
to seize, with the same result.
Down for forward
A pump seized by debris or hard shortening can
usually be freed by manually moving the gears
with a screwdriver or other instrument.
Disconnect power to the filter system, remove the input plumbing from the pump, and use a
screwdriver to manually turn the gears.
● Turning the pump gears in reverse will release a hard particle.
● Turning the pump gears forward will push softer objects and solid shortening through the pump
and allow free movement of the gears.
Incorrectly sized or installed paper/pads will also allow food particles and sediment to pass through
and clog the suction tube on the bottom of the filter pan. Particles large enough to block the suction
tube may indicate that the crumb tray is not being used. Pan blockage can also occur if shortening is
left in the pan and allowed to solidify. Blockage removal can be accomplished by forcing the item out
with an auger or drain snake. Compressed air or other pressurized gases should not be used to force
out the blockage.
1.9.2 Replacing the Filter Motor, Filter Pump, and Related Components
1. Remove the filter pan and lid from the unit. Drain the frypots into a Shortening Disposal Unit
(SDU) or other appropriate metal container.
DANGER
DO NOT drain more than one full frypot into the SDU at one time.
2. Disconnect the fryer from the electrical power supply and reposition it to gain access to both the
front and rear.
1-10
3. Disconnect the flexline running to the oil-return manifold at the rear of the fryer as well as the
pump suction flexline at the end of the filter pan connection (see photo below).
Disconnect flexlines indicated by the arrows.
4. Loosen the nut and bolt that secures the bridge to the oil-return manifold.
5. Remove the cover plate from the front of the motor and disconnect the motor wires.
6. Unplug the pump motor assembly 6-pin connector C-2.
7. Remove the two nuts and bolts which secure the front of the bridge to the cross brace and carefully
slide the bridge rearward off the cross brace until its front end can be lowered to the floor. Undo
the single nut holding it in place in back. Be careful not to let the rear of the bridge slip off the
manifold at this point.
8. Get a good grip on the bridge, carefully pull it forward off the oil-return manifold, and lower the
entire assembly to the floor. Once on the floor, pull the assembly out the front of the fryer.
9. When required service has been completed, reverse steps 3-8 to reinstall the bridge. NOTE: The
black motor wires go on the top terminal, the white on the bottom. The red/black heater tape wires
go into position 3 and the violet/white wires go into position 6 (see illustration below).
10. Reconnect the unit to the electrical power supply, and verify that the pump is functioning correctly
(i.e., when a filter handle is placed in the ON position, the motor should start and there should be
strong suction at the intake fitting and outflow at the rear flush port.)
1-11
11. When proper operation has been verified, reinstall the back panels and the filter pan and lid.
12. Reposition the fryer under the exhaust hood and reconnect it to the electrical power supply, if
necessary to return the fryer to service.
1.9.3 Replacing the Transformer or Filter Relay
Disconnect the fryer from the electrical power supply. Remove the left controller from the fryer to
expose the interior of the left component box. The transformer and relay on the left are located as
shown in the illustration below. Once replaced, reconnect the power.
When replacing a filter relay in the left component box, ensure the 24VAC relay (8070670) is used on
208-240V units and 8070012 is used on 120V units. This relay is the same relay used in the RE
fryers.
1.10 Basket Lift Service Procedures
Protector® Series electric fryers may be equipped with automatic basket lifts. Basket lifts always come
in pairs, although each operates independently.
A modular basket lift (illustrated on the following page) is a self-contained sub-assembly consisting
of a pair of toothed rods, which support removable basket lift arms, a pair of reversible-drive gear
motors, and four microswitches. The gear motors engage the teeth of the rods, moving them up or
down depending upon the motors’ direction of rotation. The microswitches at the upper and lower
limits of movement stop the motors when the basket is in the full up or full down position.
Timing circuitry in the controller initiates and stops basket lift operation depending upon the variables
programmed by the operator. When the product button is pressed, the timing circuitry activates a coil
in the basket lift relay to supply power to the lower microswitch. The microswitches stop the motor at
the lift’s upper and lower travel limits and reverse the direction of current flow thus reversing the
motor direction.
When the product button is pushed on the computer/controller, current flows through a coil in the
basket lift relay, causing the lower circuit to be activated. The basket lift lowers, closing the normally
open upper-micro-switch. When the downward-moving rod opens the lower normally closed
microswitch, the power to the motor ceases to flow. When the computer times out, the current to the
relay coil is cut, allowing the upper circuit to be activated. The basket lift rises and re-closes the lower
1-12
microswitch. When the basket lift rod clears the upper microswitch, the microswitch reopens, power
to the circuit is cut, and the motor stops. Pushing the product button restarts the cycle.
Problems with the basket lift can be grouped into three categories:
● Binding/jamming problems
● Motor and gear problems
● Electronic problems
100-120V Configuration
208-250V Configuration
BINDING/JAMMING PROBLEMS
Noisy, jerky or erratic movement of the lifts is usually due to lack of lubrication of the rods and their
bushings. Apply a light coat of Lubriplate® or similar lightweight white grease to the rod and
bushings to correct the problem.
With the modular basket lift, another possible cause of binding is improper positioning of the motor,
which prevents the gear from correctly engaging the teeth in the rod. To correct the problem, loosen
the screws that hold the motor in place and move it forward or backward until the rod has just enough
slack to be rotated slightly.
MOTOR AND GEAR PROBLEMS
With the modular basket lift, the most likely problem to be encountered in this category is erratic
motion of the lift due to a worn drive gear. Failure to keep the lift rod and bushings properly
lubricated will cause unnecessary wear of the gear. The problem is corrected by replacing the worn
gear.
If the lift cycles correctly but fails to remain in the up position (i.e., goes up, but then slowly settles
back down into the frypot), the problem is a failed motor brake. A failed motor brake cannot be
repaired and requires replacement of the motor itself.
If power is reaching the motor but the motor fails to run, the motor is burned out and must be replaced.
1-13
ELECTRONIC PROBLEMS
Within this category are problems associated with the relays, microswitches, capacitors, resistors,
interface board, wiring, and controls. The most common problem in this category is a lift that
continuously travels up and down. This is usually caused by a microswitch that is out of adjustment.
Troubleshooting the electronics of a modular basket lift is simply a process of verifying current flow
through the individual components up to and including the motor. Using a multimeter set to the 250
VAC range, check the connections on both sides of the component for the presence of the applied line
voltage. The schematic below and the wiring diagram on page 1-27 and 1-28 can identify the
components and wiring connection points.
1.11 ATO (Automatic Top-off) Service Procedures
The automatic top-off system is activated when the oil level falls below a sensor in the rear of the frypot. The
signal is sent to the ATO board to engage the solenoid to the frypot and turn on the ATO pump. The pump
draws oil from the JIB (Jug In Box) to a port in the rear of the frypot. Once the oil level has satisfied the sensor,
the pump and solenoid turn off.
The ATO board is located inside the box, behind the JIB (see Figure 1). The
power for the ATO board is supplied from the right hand component box. The
power passes through the transformer inside the ATO box to the board.
Figure 1
1-14
1.11.1 ATO (Automatic Top-off) Troubleshooting
Problem Probable Causes Corrective Action
A. Check to see that fryer is
heating. Fryer temperature
must be at least 300°F (149°C).
Check probe resistance. If
probe is bad, replace the probe.
B. Ensure oil is above 70°F
Frypots won’t top
off.
The yellow JIB low
light won’t
illuminate.
One vat tops off but
other vats fail to top
off.
Incorrect vat tops
off.
A. Probe temperature lower than
setpoint.
B. Temperature in supply line or JIB
is too low.
C. ATO board power loss
D. Failed solenoid.
E. ATO pump failed or over
tightened.
F. Failed transformer/harness.
G. Failed ATO board.
A. No power in the component box.
B. Failed transformer.
C. Loose wire connection
A. Failed solenoid
B. Loose wire connection.
A. Wired incorrectly.
B. Flexlines connected to wrong vat.
(21°C).
C. Power to the ATO board has
been cut off. Restore power to
the board and switch all
computers off and on again to
readdress system.
D. Check solenoid to see if
functioning properly.
E. If the solenoid is working,
ensure that the screws on the
bottom of the pump are not too
tight. Loosen the screws. If
loosening the screws doesn’t fix
the problem, replace the pump.
F. Ensure transformer in ATO box
is functioning properly. Check
power from transformer to ATO
board. Ensure all harnesses are
plugged securely into place.
G. Check for proper voltages using
the pin position chart found on
page 1-16. If ATO found
defective, replace ATO board.
A. Ensure power is present in the
component box.
B. If power is present in
component box, check the
transformer for correct voltage.
C. Ensure the yellow LED is
securely attached to plug J6 on
the ATO board.
A. Check power to the pump. If
the pump is hot, the solenoid
has probably failed.
B. Ensure all wiring harnesses are
securely connected to ATO
board and solenoids.
A. Ensure wires are wired
correctly.
B. Switch flexlines to correct vat.
1-15
1.11.2 ATO (Automatic Top-Off) Board Pin Positions and Harnesses
Pin
Connector From/To Harness #
Solenoids
Top Off Pump
J8
J4 (Rear) /
J5 (Front)
J3 - Vat #3
J2 - Vat #2
J1 - Vat #1
J6 Orange LED 8074555
J7
J10
J9 CM7 J7 8074646
JIB Low Reset Switch
Solenoids
Top Off Pump & JIB
Low Reset Switch
Transformer 8074553
ATO RTD
Network Resistor
(pins 2 & 3)
or to next ATO Board (4
& 5 vat units)
8074572 x1 (FV)
8074572 x2 (DV)
8074627
8074572 x1 (FV)
8074572 x2 (DV)
8074627
8074655 - Vat #1
8074654 - Vat #2
8074621 - Vat #3
8074552
# Function
1 Output DV - Vat #1
2 Output FV - Vat #1
3 Output DV - Vat #2
4 Output FV - Vat #2
5 Output DV - Vat #3
6 Output FV - Vat #3
7 Top Off Pump Black
8 JIB Low Reset
Disconnect the fryer from the electrical power
supply. Locate the ATO box (see Figure 1 on
page 14), behind the JIB (Jug In Box). Remove
the cover to expose the transformer and ATO
board (see Figure 2). Mark and unplug any
wires or harnesses. Replace the defective
component and reattach all wires or harnesses.
Replace the cover. Once replaced, reconnect the
power. Remove and restore power to ALL
computers after power has been restored to the
Figure 2
ATO board.
1.11.4 Replacing the ATO Pump or Solenoid
Disconnect the fryer from the electrical power
supply. Locate the ATO pump and solenoid tree
(see Figure 3), behind the ATO box. Mark and
unplug any wires or harnesses. Replace the
defective component and reattach all wires or
harnesses. Once replaced, reconnect the power.
Figure 3
1-17
1.12 CM7 Computer Service Procedures
b
1.12.1 CM7 Computer Troubleshooting
Problem Probable Causes Corrective Action
A. Press the ON/OFF switch to turn
the computer on.
B. Verify fryer is plugged in and
that the circuit breaker is not
tripped.
C. Swap the computer with a
computer known to be good. If
computer functions, replace the
computer.
D. Swap with a harness known to
e good. If computer functions,
replace the harness.
E. If any component in the power
supply system (including the
transformer and interface board)
fail, power will not be supplied
to the computer and it will not
function.
Remove and restore power to the
computer.
See section 1.12.2 on page 1-21 to
change temperature scale.
This in an indication of a
malfunction in the temperature
control circuitry, including a
failure of the high-limit thermostat.
This is displayed only during a test
of the high-limit circuit and
indicates that the high-limit has
opened properly.
No Display on
Computer.
Computer locks up.
CM7 display is in
wrong temperature
scale (Fahrenheit or
Celsius).
CM7 display shows
hot-hi-1.
CM7 display shows
HI-LIMIT.
A. Computer not turned on.
B. No power to the fryer.
C. Computer has failed.
D. Damaged computer wiring
harness.
E. Power supply component or
interface board has failed.
Computer error.
Incorrect display option programmed.
Frypot temperature is more than
410ºF (210ºC) or, in CE countries,
395ºF (202ºC).
Computer in high-limit test mode.
1-18
Problem Probable Causes Corrective Action
This display is normal when the
fryer is first turned on while in the
melt cycle mode. To bypass the
CM7 display shows
low temp.
CM7 display shows
PROBE
FAILURE.
CM7 display shows
PROBE
FAILURE
with
alarm sounding.
CM7 display shows
IGNITION
FAILURE.
Computer will not
go into program
mode or some
buttons do not
actuate.
CM7 display shows
HI 2 BAD.
Heat indicator off
upon initial startup.
Display shows hi or
hot with alarm
sounding.
CM7 display shows
igNITION
FAILURE with
alarm sounding.
Heating indicator is
on, but fryer is not
heating.
Frypot temperature is between 180°F
(82°C) and 315°F (157°C).
Problem with the temperature
measuring circuitry including the
probe.
Damaged computer wiring harness or
connector.
Open drain valve, failed computer,
failed interface board, open highlimit thermostat.
Failed computer. Replace computer
Computer in high-limit test mode.
Failed computer.
Drain valve not fully closed.
melt cycle press and hold a #2
product button under the LCD
display until it chirps. The
computer displays EXIT MELT
alternating with YES NO. Press
the #1 YES button to exit melt.
This indicates a problem within the
temperature measuring circuitry.
Swap the computer wiring harness
with one known to be good. If
problem is corrected replace
harness.
Is displayed if the fryer loses its
ability to heat oil. It is also
displayed when the oil temperature
is above 450°F (232°C) and the
high-limit thermostat has opened,
halting the heating of the oil.
Verify that the drain valves are
fully closed.
This is displayed only during a test
of the high-limit circuit and
indicates that the high-limit has
failed.
Replace computer.
Ensure all drain valves are
completely closed and that
microswitches are adjusted and
working.
1-19
Problem Probable Causes Corrective Action
C
R
CM7 display shows
IGNITION
FAILURE and
alarm sounds, but
fryer operates
normally (false
alarm).
CM7 display shows
low temp,
heating indicator
cycles on and off
normally but fryer
does not heat.
Failed computer.
A. Failed computer.
B. Damaged computer wiring
harness.
Replace computer.
A. Replace computer.
B. Replace computer wiring
harness.
CM7 display shows
software for only
CM7 or ATO board.
CM7 display shows
ERROR RM
SDCRD
Loose or damaged harness
Defective SD Card
heck that all harnesses between
CM7’s and ATO are secure and no
pins are pushed out or broken.
eplace card with another card.
1-20
1.12.2 CM7 Useful Codes
To enter any of the following codes: Press the UNLOCK ▼ button three times. TECH is displayed.
Press the 9 button. Enter a code number below:
•Reset Factory Menu - Enter 3322. The computer display flashes and quickly counts
from 1-40 and switches to off. (NOTE: This will delete any hand-entered menu items).
1000. Computer display switches to off. Remove and then restore power to the
computer using the 20-pin plug. If this message appears at any time other than after upgrade
from a previous version, replace the computer
• Enter Setup – Enter 7378.
PASSWORDS
Program Mode: Press the UNLOCK ▼ button once. The computer displays PROGRAM. Press
the 9 button. ENTER CODE is displayed. Enter 1650.
Manager Mode: Press the UNLOCK ▼ button twice. The computer displays MANAGER. Press
the 9 button. ENTER CODE is displayed. Enter 4321.
Tech Mode: Press the UNLOCK▼ button three times. The computer displays TECH. Press the
9 button. CODE is displayed. Enter 7378.
1-21
1.12.3 CM7 Menu Summary Tree
Reflected below are the major programming sections in the CM7 and the order in which submenu headings will be found
under the sections in the Installation and Operation Manual.
Adding New Product Menu Items See section 4.10.2
Storing Product Menu Items in Product Buttons See section 4.10.3
Temperature Conversion from F° to C° See section 4.10.4
1.13 Loading and Updating Software Procedures
Loading Software from an SD card to an CM7 Computer and ATO Board
To update CM7 and ATO software follow these steps:
1. Switch all computers to OFF. Press the TEMP button to check current CM7/ATO software
version.
2. Remove the two screws on the left side cover plate of the CM7 computer.
3. With the computer folded down, insert the SD card, with the contacts facing down and the notch
on the bottom right (see Figure 4 and 5), into the slot on the left side of the CM7.
4. Once inserted, FWUPD appears on the left display and SCCRCOK on the right. Numbers
count up on the right display.
5. The display then changes to FWLOAD on the left; numbers count up on the right.
6. The computer displays OBFCRC. If updating ATO software, the computer will display FWU ATO on the left and will count down from 2500 on the right.
7. When the update is complete the CM7 displays DONE on the left and RM SDCRD on the
right.
8. Remove the SD card using the fingernail slot on the top of the SD card.
9. Repeat steps 1-8 for all computers.
10. Remove ALL power from the fryer on the rear of the unit.
11. Restore power to the fryer. There is short delay prior to the computer powering up and displaying
OFF.
12. With the computer displaying OFF, verify software update by pressing the TEMP button to
check updated CM7/ATO version.
Figure 4 Figure 5
1-24
1.14 Interface Board Diagnostic Chart
The following diagram and charts provide ten quick system checks that can be performed using only a
multimeter.
Diagnostic LED Legend
CMP indicates power from 12V transformer
24 indicates power from 24V transformer
HI (RH) indicates output (closed) from right latch
relay
HI (LH) indicates output (closed) from left latch
relay
HT (RH) indicates output from right heat relay
HT (LH) indicates output from left heat relay
AL (RH) indicates output (open) from right latch
relay
AL (LH) indicates output (open) from left latch
relay
PN 826-2260 (106-6664)
NOTE – Pin 1 is located in the bottom right corner of
Both J1 and J2. These test points are ONLY for the
Protector® Series boards with J1 and J2 plugs on
the front of the board.
Meter Setting Test Pin Pin Results
12 VAC Power 50 VAC Scale 3 of J2 1 of J2 12-16 VAC
24 VAC Power 50 VAC Scale 2 of J2 Chassis 24-30 VAC
*Probe Resistance (RH) R X 1000 OHMS 11 of J2 10 of J2 See Chart
*Probe Resistance (LH) R X 1000 OHMS 1 of J1 2 of J1 See Chart
High-Limit Continuity (RH) R X 1 OHMS 9 of J2 6 of J2 0 - OHMS
High-Limit Continuity (LH) R X 1 OHMS 6 of J1 9 of J1 0 - OHMS
Latch Contactor Coil (RH) R X 1 OHMS 8 of J2 Chassis 3-10 OHMS
Latch Contactor Coil (LH) R X 1 OHMS 5 of J1 Chassis 3-10 OHMS
Heat Contactor Coil (RH) R X 1 OHMS 7 of J2 Chassis 11-15 OHMS
Heat Contactor Coil (LH) R X 1 OHMS 4 of J1 Chassis 11-15 OHMS
* Disconnect 15-Pin harness from the computer/controller before testing the probe circuit.
1-25
1.15 Probe Resistance Chart
Probe Resistance Chart
For use with fryers manufactured with Minco Thermistor probes only.
* 106-5957 Wiring Harness, RE Series Electric Basket Lift (Plugs into Item 6)
* Not illustrated.
2-3
2.3 Doors, Sides and Casters
ITEM PART # COMPONENT
1 231-0323 Side, Standard Cabinet Left SS (use 221-0323 for Enameled Steel)
2 232-0323 Side, Standard Cabinet Right SS (use 222-0323 for Enameled Steel)
3 810-1105Magnet, Door (vertical) (use 810-2346 for horizontal over filter pan)
4 106-4397Door, Left or Right (Left shown – move handle to bottom for right)
5 210-9739Handle, Eurolook Door
6 106-4067 Pin Assembly, Door
* 810-0275 Spring, Door Pin
* 809-0970 Retaining Ring
* 230-4685Hinge, Door Lower
7 810-1494Caster without Brake
8 810-2970 Caster with Brake
* Not illustrated.
2-4
2.4 Drain System Components
2.4.1 Drain Tube Sections and Associated Parts
See Section 2.4.2 for Drain Valves
ITEM PART# COMPONENT
1 823-4625Drain Tube, Full-Vat Left Closed/Right End Open
2 823-6663 Drain Tube, Dump
3 823-4643Drain Tube, Full-Vat Left and Right Open Short
4 823-4641 Drain Tube, Full-Vat Left and Right Open Long
5 823-4639Drain Tube, Full-Vat Left Open/Right End Closed
6 220-5395 Drain Tube, Full-Vat, Short, Spreader, Open Both Ends
7 220-5396 Drain Tube, Full-Vat, Long, Spreader, Open Both Ends
8 823-7093 Drain Tube, Full-Vat Two Battery Right Left Open/Right End Closed
9 823-7094 Drain Tube, Dump Two Battery Left Closed, Right Open
10 823-7103 Drain Tube, Dump Two Battery w/ Spreader, Left, Both Ends Closed
11 823-7104 Drain Tube, Dump Two Battery w/ Spreader, Right, Both Ends Closed
12 816-0772 Sleeve
13 809-0969 Clamp
2 826-2212Probe, Temperature RE – includes tie wraps and grommet.
807-4324Probe, Temperature Fast Ready
3 816-0681 Grommet, Probe
4 816-0480Plug, .375-inch Dome
5 816-0688 Gasket, Element
6 809-1003Screw, 10-32 X ⅜-inch Hex Head SS
* 809-0766Nut, 10-32 Keps Hex Head SS
* 230-4028Wrench, Element Tube Nut Spanner
7 910-5022Bracket, Temperature Probe 7.0 kW
230-0784Bracket, Temperature Probe 8.5/11 kW
8 809-0518Screw, 8-32 X ⅜-inch Slotted Hex Head
9 910-2042Clamp, Element (Short)
10 230-0781Clamp, Element (Long)
11 230-0780 Support, Full-Vat Element Rear
12 823-5621Support, Full-Vat Element Front
13 809-0567 Tie-Wrap, Metal
14 810-1212Pin, .125 X .5-inch Split
15 220-0464Bracket, Lower Spring
16 220-0733Bracket, Lower Spring Mating
17 810-1233 Handle, Element Lift
* Not illustrated.
2-15
2.5.6 Element Tube Assemblies
ITEM PART # COMPONENT
1 106-7653SP Tube Assembly Element, Full-Vat
2 106-5329Bracket Assembly, LH Element Tube Support
3 106-5330 Bracket Assembly, RH Element Tube Support
4 220-0122 Plate, Element Tube Support Inner
5 220-0123 Plate, Element Tube Support Outer
6 106-7651 Bracket Assembly, LH Upper Spring (use 106-6569 for 17kW)
7 106-7652 Bracket Assembly, RH Upper Spring (use 106-6570 for 17kW)
8 810-2992 Tube, Full Vat Element Mounting
9 810-2993Bushing, Tube End Teflon
* 106-6587 Magnetic Position Sensor Assembly
* 826-2228Magnetic Position Sensor Assembly with Bracket
* 810-3007 Magnet
* 230-0794Bracket, Magnetic Position Sensor Wire
* Not illustrated.
2.5.7 Computers
NOTE: See Page 2-20 for Interface Board to Computer Wiring Harness
ITEM PART # COMPONENT
Replacement CM7 Computer
108-0227 Non-CE CM7 (For use in US, Canada, Mexico and all other non-CE countries)
108-0229 Non-CE CM7 EPRI (For use in US, Canada, Mexico and all non-CE countries)
108-0223 CE CM7 (For use in European CE countries)
108-0225 CE CM7 EPRI (For use in European CE countries)
2.5.8.8 Interface Board to Controller Wiring Harness – 15-Pin
PN 807-4199
SMT Controller to Interface
Board Wiring Harness
2.5.8.9 CM7 and ATO Wiring Harnesses
ITEM PART # COMPONENT
* 807-4546 Computer Communication (used from Computer to Computer)
* 807-4655Harness RTD Medium (used from RTD to ATO Board)
* 807-4654 ATO RTD Probe
* 807-4621 Harness RTD Short (used from RTD to ATO Board)
* 807-4553Harness, ATO Power (used from Transformer to ATO Board)
* 807-4671
* 807-4555 ATO Yellow LED (used from ATO Board to Yellow LED)
* 807-4573
* 807-4552
807-4657 Jumper (used on 4 and 5 battery ATO board plug J5 pin 7 and 8)
* 106-9256SP Long Top-off Power (used between Component Box to ATO Box)
* 807-4646Harness, Communication Long (used from Far Right Computer to ATO board)
* 807-4660PKSMT Pin Service Repair Kit
* 230-2345SMT Pin Extractor
* Not illustrated.
See page 1-16 and 1-23 for Pin Positions.
Harness, ATO Pump and JIB (used from ATO Board to Top-off Pump and JIB
Reset Switch)
Computer Locator Wire (used from Computer to Interface Board) See wiring
diagram 805-1735 on page 1-38 for locator pin positions.
Communications Terminator (used on Computer pin J6 and ATO board pin
J10 to terminate network)
2-21
2.6 Filtration System Components
2-22
2.6 Filtration Components cont.
ITEM PART # COMPONENT
1 823-6560 Lid, Multi-Vat Fryers, Standard Size Filter Pan
823-6362 Lid, Two-Vat Fryer, Half Size Filter Pan
2 810-3276Crumb Tray, Standard Size Filter Pan 3, 4 and 5 Vat
810-3288Crumb Tray, Two-Vat Fryer, Half Size Filter Pan
3 810-3419 Hold-Down Ring for Paper 13.65 x 21.41, Standard Size Pan 3, 4, and 5 Vat
810-3289Hold-Down Ring for Pad 11.20 x 19.10, Two-Vat Fryer, Half Size Filter Pan
4 200-2240 SanaGrid Filter Screen, Standard Size Filter Pan
220-2901 SanaGrid Filter Screen, Two-Vat Fryer, Half Size Filter Pan
* 807-11973Viking Pump Seal Kit
13 813-0165Elbow, ST ½-inch x ½-inch NPT 90° BM
14 810-1668 Adapter, ⅝-inch to ½-inch NPT Male
15 810-1067Flexline, 8.5-inch Oil Return
16 810-1057Flexline, 13-inch Oil Return
17 826-1392O-Ring (Pkg. of 5; used with Item 5)
18 813-0568 Plug, ⅛-inch Socket Head Pipe (used with Item 5; two required)
1 823-6912 Frypot, Full-Vat
2 Thermostat Assembly, High-Limit Long Standard
806-7543Non-CE Full Vat 425°F (218°C) (14 and 17kW FV) (Color Coded Black)
806-8035 Non-CE Full Vat 435°F (224°C) (22kW ) (Color Coded Red)
806-8132 CE Full Vat 415°F (213°C) (14kW and 17kW CE) (Color-Coded Yellow)
806-8536 CE Full Vat 405°F (207°C) (22kW CE) (Color-Coded White)
3 807-4645 Probe, Temperature ATO RTD
4 813-0617Fitting, 3/16” x ¼” NPT
5 813-0298Nipple, ½” x 2.00” NPT BM Pipe
6 813-0062Elbow, ½” BM x 90°
7 813-0460Nipple, ½” x 3.00” NPT BM Pipe
8 813-0165Elbow, St ½” x ½” NPT 90° BM
9 810-0278Valve, Return ½” Ball
10 200-5438Handle, Valve Rear Flush
11 900-2935Retainer, Nut Oil Return Valve
12 810-1668 Adaptor, Male ⅝” OD x ½”
13 810-1055 Flexline, ⅝” OD x 11.50” Long
1 106-9258 Box, Assembly Auto Top Off Board (use 106-8913 for 2-Vat)
2 816-0747 Seal, Top Off Board
3 106-9611PCB Board, Automatic Top Off 2
4 807-1999Transformer, Dual Voltage 208-240V
807-2176Transformer, Dual Voltage 120V
5 220-4352 Cover, Top Off Board 3, 4 or 5-Vat
220-3987 Cover, Top Off Board 2-Vat
* 807-3575Plug, Carling Switch Hole
* Not illustrated.
2-26
2.9.3 Solenoid and Pump Assemblies
7
4
8
3
1
6
ITEM PART # COMPONENT
1 106-9680SPPump, ¼ FNPT 12VDC, 19PSI 15.1GPH
2 807-4412 Solenoid Manifold Top-Off (includes three solenoid assemblies)
3 807-4587 Solenoid Manifold Top-Off (includes two solenoid assemblies)
4 807-4590 Solenoid
5 810-3270 Fitting, ⅜ Flare x ¼ NPT
6 816-0708Fitting, ¼ NPT x ½ Male Barb
7 816-0710Fitting, ¼ NPT x ½ Barb 90°
8 813-0640 Plug, ¼ NPT SQ HD BM
* 811-1139Tubing, Braided Silicone 20-inch
* 810-3266 Flexline, ½” OD x 19.5-inch (used between solenoid and top off port)
* 810-3265Flexline, ½” OD x 24-inch (used between solenoid and top off port)
* 810-3263Flexline, ½” OD x 36-inch (used between solenoid and top off port)
* 810-3264 Flexline, ½” OD x 42-inch (used between solenoid and top off port)
* 809-0448 Clip, Tinnerman
* 826-1366Nut, 4-40 Keps Hex (Pkg. of 25) (809-0237)
* 826-1358Nut, 6-32 Keps Hex (Pkg. of 25) (809-0049)
* 809-0247Nut, 8-32 Keps Hex
* 826-1376Nut, 10-32 Keps Hex (Pkg. of 10) (809-0256)
* 809-0766Nut, 10-32 Keps Hex SS
* 809-0581Nut, ½ NPT Locking
* 809-0020Nut Cap 10-24 NP
* 826-1372Nut Grip ¼-inch ¼-20 Hex NP (Pkg. of 10) (809-0059)
* 809-0417Nut Flange ¼-inch ¼-20 Serr
* 809-0535Nut, "T" ¼-inch-20 x 7/16 SS
* 809-0495Nut, ¼-inch – 20 Press
* 809-0540Nut, Lock ½-inch-13 Hex 2-Way ZP
* 826-1359Screw, 4-40 x ¾-inch Slotted Round Head (Pkg. of 25) (809-0354)
* 826-1365 Screw, 6-32 x ⅜-inch Slot Head (Pkg. of 25) (809-0095)
* 809-0357Screw, 6 x ⅜-inch Phillips Head NP
* 809-0359Screw, 8 x ¼-inch Hex Washer Head
* 809-0360Screw, 8 x ⅜-inch Hex Washer Slot Head
* 826-1371Screw, 8 x ½-inch Hex Head ZP (Pkg. of 25) (809-0361)
* 809-0364Screw, 8 x ⅝-inch Hex Washer Head ZP
* 809-0518 Screw, 8-32 x ⅜-inch Hex Washer Slotted Head SS
* 809-0104Screw, 8-32 x ½-inch Slotted Head ZP
* 826-1363Screw, 8-32 x ½-inch NP (Pkg. of 25) (809-0103)
* 826-1360Screw, 10-24 x 5/16-inch Round Slot Head ZP (Pkg. of 25) (809-0024)
* 826-1330Screw, 10-32 x ⅜-inch Slot Head SS (Pkg. of 25) (809-0117)
* 809-1003Screw, 10-32 x ⅜-inch Hex Trim Head SS
* 809-0270Screw, 10-32 x ½-inch Phillips Head ZP
* 826-1375Screw, 10-32 x ¾-inch Hex Trim Head SS (Pkg. of 5) (809-0401)
* 809-1000 Screw, 10-32 x 1¼-inch Hex Sck C/S
* 826-1374Screw, 10 x ½-inch Hex Head (Pkg. of 25) (809-0412)
* 809-0266Screw, 10 x ½-inch Phillips Head ZP
* 809-0434 Screw, 10 x ⅜-inch Hex Washer Head NP
* 809-0123Screw, 10 x ¾-inch Slot Head
* 826-1389Screw, 1/4-20 x ¾-inch Hex Head ZP (Pkg. of 10) (809-0131)
* 809-0582Washer ½ NPT Locking
* 809-0184Washer, #10 LK ZP
* 809-0190Washer, .625 X .275 X 40 Flat SS
* 809-0191Washer, Lock ¼ Spring ZP
* 809-0193Washer, Flat ¼ Nylon
* 809-0194Washer, Flat 5/16 ZP
2-30
Frymaster, L.L.C., 8700 Line Avenue, Shreveport, Louisiana 71106
TEL 1-318-865-1711 FAX (Parts) 1-318-219-7140 FAX (Tech Support) 1-318-219-7135
PRINTED IN THE UNITED STATES
SERVICE HOTLINE
1-800-551-8633
819-6344
APRIL 2008
Loading...
+ hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.