Pitco SELVRF User manual

[phone] L22-405 R0
hp://www.pitco.com 14/18
TROUBLESHOOTING AND
SERVICE MANUAL
Covering SELVRF
Disclaimer: By performing any service on the intended equipment of this manual, you agree to assume all risks involved with performing the service including but not limited to damage to
property, personal injury and loss of income. Pitco/Magikitch’n/Anets/Perfect Fry recommends all service to be performed by a qualied service agent. Improper service or maintenance
can cause serious property damage, personal injury or death. It is the responsibility of the person servicing the equipment to follow all safety procedures and verify proper operaon of the
equipment aer performing service. Read the operaons manual prior to operang or servicing any equipment. Ensure to review all noces, cauons, warnings and dangers noted in the
operaons manual.

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
L22-405 RO 2
Table of Contents
SAFETY WARNINGS……...……………………..………….……………………3-4
SERIAL NUMBER BREAKDOWN.……………………….………………………5
THEORY OF OPERATION……………..…………………….……………………..6
BASIC TROUBLESHOOTING..…………………………….………………………7
PREPAIRING TO SERVICE APPLIANCE……………….……………………….8
COMPONENT IDENTIFICATION……………………….……………………..8-9
COMPUTER DISPLAYS…………………………………….…………………10-11
COMPONENT TROUBLESHOOTING…………….……………………..12-18
 Temperature Probe ……………………………………………………………………………………………………………..…12
 Oil Level Probe ………………………………………………………………………………………………………………………12
 24VAC Transformer………………………………………………………………………………………………………………….12
 DC POWER SUPPLY………………………………………………………………………………………………………………….13
 Element ………………………………………………………………………………………………………………………………….13
 Contactors ..…………………………………………………………………………………………………………………………….13
 Actuators ………………………………………………………………………………………………………………………………..14
 Hi-Limit Switch ……………………………………………………………………………………………………………………….14
 Auto Filter Board ……………………………………………………………………………………………………………….15-17
 Filter Pump and Motor…………………………………………………………………………………………………………….18
 Pan In Place/Pan Not Empty Switches …………………………………………………………………………………….18
TEMPERATURE PROBE RESISTANCE CHART……..……………………..19
SCHEMATICS ………………………………………………….…………………20-24
NOTES .…………………………………………………………….……………………25
CONTACT THE FACTORY …………………………………………………………26

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
3L22-405
TO THE PURCHASER, OWNER AND STORE MANAGER
Please review these warnings prior to posting them in a prominent location for reference.
WARNING
DO NOT store or use gasoline or other ammable vapors and
liquids in the vicinity of this or any other appliance.
WARNING
Improper installaon, alteraon, service or maintenance can
cause property damage, injury or death. Read the installaon,
operang and maintenance instrucons thoroughly before
installing or servicing this appliance.
WARNING
Installaon and all connecons must be made according to
naonal and local regulaons and codes in force.
WARNING
A country approved all pole circuit breaker with a minimum
open contact gap of 3mm must be used for proper installaon.
(CE Countries)
WARNING
During the warranty period, if the customer elects to use a non-
original part or modies and original part purchased from Pitco
and/or its Authorized Service and Parts (ASAP) companies, the
warranty will be void. In addion, Pitco and its aliates will not
be liable for any claims, damages or expenses incurred by the
customer which arises directly or indirectly, in whole or in part,
due to the installaon or any modied part and/or received
from an unauthorized service center.
WARNING
This appliance, when installed, must be electrically grounded in
accordance with local codes, or in the absence of local codes,
with the Naonal Electrical Code,
ANSI/NFPA 70, or the Canada Electrical Code, CSA C22.2, as
applicable.
WARNING
Adequate means must be provided to LIMIT the movement of
this appliance without depending on the electrical cord
connecon. Single appliances equipped with legs must be
stabilized by installing anchor straps. All appliances equipped
with casters must be stabilized by installing restraining chains.
WARNING
DO NOT alter or remove structural material on the appliance to
accommodate placement under a venlaon hood.
WARNING
This appliance is intended for commercial/professional use only
and should be operated by fully trained and qualied personnel.
It is not intended for connuous mass producon of food.
WARNING
This appliance is intended for indoor use only.
WARNING
If the power supply cord is damaged, it must be replaced by a
Pitco Authorized Service and Parts (ASAP) company technician,
or a similarly qualied person in order to avoid a hazard.
In Europe, supply cords must be oil resistant, sheathed exible
cable not lighter than ordinary polychloroprene or other
equivalent synthec elastomer-sheathed cord. (Code
designaon 60245 IEC 57)
WARNING
The power supply must be disconnected before servicing,
maintaining or cleaning this appliance.
WARNING
The appliance is NOT water jet stream approved. DO NOT clean
the appliance with a water jet or steam cleaner.
WARNING
DO NOT aempt to move this appliance or transfer hot liquids
from one container to another when the unit is at operang
temperature or lled with hot liquids. Serious personal injury
could result if skin comes in to contact with hot surfaces or
liquids.
WARNING
DO NOT sit or stand on this appliance. The appliance’s front
panel, tank, splash back, tank cover, work shelf or drain board is
not a step. Serious injury could result from slipping, falling or
contact with hot liquids.
WARNING
NEVER use this appliance as a step for cleaning or accessing the
venlaon hood. Serious injury could result from slips, trips or
from contacng hot liquids.
WARNING
Potenal re danger exists if the cooking oil level is below the
minimum indicated level. The cooking oil level should NOT be
allowed to fall below the minimum indicated level line at any
me. The use of old cooking oil can be dangerous as it will have
a reduced ash point and be more prone to foaming over.
WARNING
The contents of the crumb catch and/or lter pan of any lter
system must be emped into a reproof container at the end of
each day. Some food parcles can spontaneously combust if le
soaking in certain types of oil or shortening.
WARNING
Completely shut the appliance down when shortening/oil is
being drained from the appliance. This will prevent the
appliance from heang up during the draining and lling
process. Serious injury can occur.
WARNING
DO NOT operate the appliance unless all panels and access
covers are aached correctly.
WARNING
It is recommended that this appliance be inspected by a
qualied service technician for proper performance and
operaons on a yearly basis.
WARNING
This appliance is designed to be used with oils that are at a
liquid state at room temperature. Use of solid shortenings and
oils will cause damage to the lter system and void warranty.
WARNING
This appliance must be installed by a qualied service agent. The
qualied service agent will ensure the appliance is installed
according to all local and naonal codes.

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
L22-405 RO 4
HIGH VOLTAGE
DISCONNECT ELECTRICAL SUPPLY
BEFORE SERVICING
AUTOMATIC FILTERING PROCESS
THIS APPLIANCE MAY OPEN ACTUATORS OR TURN ON
THE FILTER PUMP AT ANY TIME. DISCONNECT THE
ELECTRICAL SUPPLY BEFORE SERVICING
THIS APPLIANCE MAY HAVE MORE THAN ONE
ELECTRICAL SUPPLY CONNECTION.
DISCONNECT ALL ELECTRICAL SUPPLY
CONNECTIONS BEFORE SERVICING
HOT SURFACES
ALLOW UNIT TO COOL TO ROOM
TEMPERATURE BEFORE SERVICING
SOME TROUBLESHOOTING STEPS REQUIRE THE
ELECTRICAL SUPPLY TO BE CONNECTED. USE
EXTREAME CAUTION AND FOLLOW PROPER SAFETY
PROCEDURES WHEN PERFORMING LIVE VOLTAGE
TROUBLESHOOTING
BURN HAZARD
DO NOT MOVE THE APPLIANCE
WHEN FULL OF HOT LIQUIDS

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
5L22-405
SERIAL NUMBERS
Serial numbers contain a date code that can idenfy the approximate date of manufacture.
Below is a breakdown of serial number E18XY000000
E18 XY000000
E = ELECTRIC
F = FILTER
G = GAS
YEAR OF
MANUFACTURE
MONTH OF
MANUFACTURE
SEE TABLE 1
BELOW
WEEK OF
MONTH SEE
TABLE 1 BELOW
SEQUENTIAL
NUMBER
SEQUENCE
MONTH (X) WEEK OF MONTH (Y)
JANUARY A1
FEBURARY B2
MARCH C3
APRIL D4
MAY E5
JUNE F6
JULY GN/A
AUGUST HN/A
SEPTEMBER JN/A
OCTOBER KN/A
NOVEMBER LN/A
DECEMBER MN/A
Table 1—Serial
Number Guide

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
L22-405 RO 6
THEORY OF OPERATION
The Pitco SELVRF works very similarly to the Pitco standard electric fryer. However, although both types
employ xed heang elements, the SELVRF is equipped with a li rack system that assists users by reducing
the eort needed to lower and raise large amounts of food product into and out of the oil. The SELVRF fryer
also comes equipped with an integral lter system and a state of the art cooking controller that allows the
user to program and control cook mes and temperatures for several products. Filtering and oil management
funcons (such as bulk oil ll and waste oil management, if so equipped) are also accomplished using the
controller. Addionally, the SELVRF comes equipped with a JIB (Jug in Box) that allows a user or the auto top
o system, if equipped, to replenish any oil consumed or drawn out of the tank during the cooking process
through use of the controller.
The Pitco SELVRF has a reduced cold zone which signicantly reduces oil usage and extends oil life. This
smaller zone may require more frequent ltering depending on the product being fried.
Upon turning the fryer on, the safety (side on) contactor closes unl the fryer is turned o. If the oil
temperature exceeds the trip temperature of the hi-limit switch, the hi-limit switch opens and prevents
further operaon unl the unit is safe to operate. This places a minimum duty cycle on the safety (side on)
contactor to insure its proper operaon when needed. The “heat demand” contactor opens and closes on
demand from the primary control to maintain the desired cooking temperature. When the “heat demand”
contactor closes, it energizes the heang elements in the fry pot. The temperature and hi-limit switch sensor
probes can be found mounted to the heang elements. The temperature probe provides a signal to the
primary control, sensing the oil temperature in the fry pot. Based on temperature feedback from the probe
the controller will energize and de-energize the heang elements in response to the temperature of the oil in
the tank.

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
7L22-405
TROUBLESHOOTING
ISSUE CAUSE STEPS TO RESOLVE ISSUE
Unit will not turn on and has no display
1. No power to the appliance
2. Power cord unplugged
3. Blown fuse(s)
1. Check circuit breaker in store to make sure it
is not tripped
2. Plug in power cord
3. Replace blown fuse(s)
Unit will not heat or controller displays
“ ”
1. Float switch in the down posion
2. Tripped hi-limit switch
3. Controller turned o
1. Check that the oat switch is not stuck in
the down posion and that there is sucient
oil level in the tank.
2. Reset the hi-limit switch
3. Turn the controller on
Display shows
“ ”
1. Filter pan not installed
2. Filter pan not installed properly
3. Door open
1. Install the lter pan and retry
2. Remove and reinstall the lter pan properly
and retry
3. Close the door and retry
Display shows
“ ”
1. Oil in lter pan
2. Debris holding lter pan oat up
1. Remove the oil from the lter pan and retry
2. Remove debris from the lter pan oat and
retry
Display shows
“ ”
1. Clogged drain
2. Drain actuator thermal limit tripped
1. Use provided clean out rod to remove clog
from drain
2. Reset thermal limit on actuator
Display shows
“ ”
1. The drain tried to close and was not sensed
closed by the controller
1. Remove tools and debris from drain. The
drain will automacally aempt to close again
aer 10 seconds of the error appearing.
Display shows
“ ” 1. Tank is not relling from lter pan.
1. Check that the lter motor is running.
2. Filter paper may need to be changed.
3. Strainer cap need to be cleaned.
Display shows
“ ”
1. Door was opened while ltering
2. Filter pan was removed while ltering
1. Close the door and check that the lter pan
is properly installed.
2. The automac lter process has been
canceled and the user must acknowledge the
error.
Pump wont turn on
1. Pump circuit breaker tripped or in the “O”
posion.
2. Motor thermal limit tripped
3. No power to lter motor
1. Turn on the circuit breaker
2. Reset the motor thermal limit
3. Plug in unit and check store circuit breaker
for appliance. Also check power cord from
motor is secure.
Pump runs but no oil is returning to the tank
1. Filter pan not installed properly
2. Filter paper clogged with debris
3. Strainer cap clogged with debris
4. Damaged or missing strainer cap or pickup
block O-rings
5. Clog in pump sucon or return lines
6. Pressure relief valve needs adjusng
1. Properly install lter pan
2. Change lter paper
3. Remove and clean strainer cap.
4. Replace O-rings
5. Remove clog
6. Adjust the pressure relief valve on the pump
head

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
L22-405 RO 8
PREPAIRING TO SERVICE THE APPLIANCE
1. Turn the appliance o by pressing the power buon on the
controller
2. Unplug the power cord. If the appliance is hardwired, shut o and lock
out the circuit breaker.
3. Remove the front panel by removing the two Phillips head screws. Allow
the front panel to come down and hinge on the front spacer. Do not
allow the front panel to fall as it may cause damage to the controller,
relay board and wire harness. See gure 1.
4. Remove the entrance box covers located behind the door by removing
the four outer Phillips head screws. See gure 2.
Figure 1
Figure 2
COMPONENT IDENTIFICATION
1. Auto Filter Relay Board (A4)
2. 24VDC Power Supply (A12)
3. 24VAC Transformer (T1)
4. 4 Post Barrier Terminal Block (BS3)
5. Pump Run Relay (K5)
12334541
Figure 3

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
9L22-405
COMPONENT IDENTIFICATION (CONTINUED)
6. Main Power Terminal Block (TB1)
7. 40 Amp Fuse Quanty 6 (FB1, FB2)
8. Heat Demand Contactor (K11)
9. Safety (Side On) Contactor (K10)
10. Element (HTR1, HTR2)
11. Hi-Limit Switch (HL1)
12. Spinal Tap Conduit
13. Door Switch*
14. AC Fuse (250V 2.5A Time Delay)* (F3)
15. DC Fuse (250V 4A Time Delay)* (F4)
16. Filter Pump Circuit Breaker* (CB1)
17. Remote USB Port
*Only found in cabinet with lter pan.
61211
10 1
987
171615
1413
Figure 4
Figure 5

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
L22-405 RO 10
COMPUTER DISPLAYS
•
 Aer every lter cycle, the equipment will be put into an energy savings mode. This mode will drop the set
temperature to the programmed setback temperature.
 To enter energy save mode, press and hold the thermometer key unit “” is displayed.
 To exit the energy save mode, press the thermometer key once and the unit will then heat to the correct set
temperature for cooking products.
•
 Quick lter is when the unit will drain the oil into the lter pan and then ll the tank. This process usually takes less
than two minutes.
•
 This is the end of day lter. It is the same process as the quick lter except the oil will run through the lter paper for
a longer me for a more thorough cleaning process.
•
 This indicates that the lter pan in not installed or not installed properly. This message will also display if the front
door is open. Make sure the lter pan is installed properly and the front door is closed before trying to lter again.
•
 The lter pan may sll have oil in it or there is debris holding the lter pan oat in a raised posion. Remove the oil
and/or debris before trying to lter again.
•
 The lter pan has not properly sensed oil draining into it from the fry pot during a lter cycle. If the drain is open and
no oil is entering the lter pan, use the provided drain tool to clear the drain. Once the oil drains into the lter pan,
the lter process will automacally restart.
•
 The oil is returned to the fry tank from the lter pan to nish the lter cycle. If the lter pan is not sensed empty
within a predetermined me, the system assumes there is a pump issue.
 Check to make sure the pre-lter screen is free of any debris and is screwed in and ght. Finger ght is ok.
Also check that the white O-ring is in place on the pre-lter screen.
 Check the white On/O switch behind the door towards the top of the cabinet is in the On posion. This is
the circuit breaker for the pump motor.
•
 The lter pan was sensed as not in place or the door was opened during a running lter cycle. This error will shut
down all operaon and the operator must intervene to nish the lter cycle.
 Check to make sure the lter pan did not get pulled out from the fryer while the fryer was in a lter mode.
Replace the lter pan or push the lter pan back in place.
 Verify the door is properly latched.
 Once the lter pan has been put back into the proper posion and the door closed, you will need to manually
return the oil to the fry pot using the computer interface.
• Press and hold the middle lter buon unl the display shows “ ”
• Press the “L” key.
• Press the “6” key to turn on the lter pump.
• Once the oil is returned, press the “6” key again to turn the lter pump o.
• Turn the fryer o and back on. The unit is now ready for use.

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
11 L22-405
COMPUTER DISPLAYS
•
 During the lter cycle, the system automacally closes the drain. If there is debris or tools in the drain when it
aempts to close it, the drain will not close correctly and give you this message.
 Remove any debris or tools from the drain and press the “6” key to try closing the drain again.
 If all debris and tools have been removed, the drain will close and the lter process will connue.
 You have three aempts to retry closing the drain. Aer the third failed aempt at closing the drain, the
fryer will shut down and will display “ ”. Do not
power cycle the fryer at this me as repeated aempts to close the drain may cause damage if the debris is
not properly cleared. The drain manifold should be dismantled to clear any clogs. If the tank needs to be
drained to remove the clog, an alternate draining method must be used.
•
 The drain aempted to close three mes and never was sensed closed. Service will need to be scheduled. Do not
power cycle the fryer at this me as repeated aempts to close the drain may cause damage if the debris is not
properly cleared.
• or
 The fryer must be ltered before any further cook mers can be started.
•
 JIB stands for Jug In Box and is referring to the container of oil in the cabinet of the fryer.
 If you have a single fryer, the JIB is the metal slide out box that must be manually lled with oil.
 If you have a dual fryer, the JIB is the plasc jug of fresh oil located in the le-hand fryer cabinet.
 This message indicates the JIB is geng low on oil and will need to be relled/changed soon.
•
 JIB is empty and needs to be lled/changed.
 To reset the error, ll or change the JIB and then press and hold the clock key on the controller unl
is displayed and then press the “6” key for yes.
•
 The fryer is trying to take fresh oil from the JIB but it is not able to.
 Rell or replace the JIB and then reset the JIB mer.
 Make sure the pump circuit breaker is in the “ON” posion.
•
 This is usually due to a tripped hi limit or low oil level causing the liquid oat switch to open.
 Turn the fryer o. Press the reset buon for the hi limit switch, located next to the remote USB port.
 Verify proper oil level in the tank and the turn the unit back on to see if normal operaon returns.
 If normal operaon did not return, check troubleshoong steps for the relay board heat circuit.
•
 Temperature probe is not being sensed by the controller.
 Refer to temperature probe troubleshoong in this manual.
•
 A short to ground on the temperature probe circuit has been detected. Check the probe circuit and the temperature
probe for shorts to ground using a mulmeter.
•
 The controller is detecng the oil temperature has reached 40°F (22°C) above set point or 410°F (210°C),
•
 Drain is not sensed closed when the unit is turned on. Refer to drain actuator troubleshoong in this manual.
•
 A communicaon failure has occurred between the controller and relay board. Power cycle the unit.

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
L22-405 RO 12
COMPONENT TROUBLESHOOTING
Temperature Probe:
To check the temperature probe resistance reading:
1. Turn the appliance o. Disconnect the electrical supply.
2. Open the front panel to gain access to the temperature probe connecon.
3. Disconnect the temperature probe from the computer wire harness.
4. Using a mulmeter that can read up to a minimum of 200K ohm, check the resistance of the temperature probe and
record the reading. If the reading is “O.L.” or “OPEN”, the temperature probe has failed and would need to be
replaced.
5. Check each probe lead to the frame of the appliance. A reading of “O.L.” or “OPEN” should display. Any resistance
reading to the frame would indicate a short to ground and the probe would need to be replaced.
6. Check the current oil temperature inside the tank, approximately one inch above the end of the temperature probe
inside the tank. Record the temperature reading.
7. Using the temperature probe chart on page 19, compare the resistance reading to the temperature of the oil. The
temperature listed on the chart for the resistance should be within 5°F/2.8°C of the actual oil temperature.
8. Reconnect the temperature probe to the controller wire harness and reassemble the front panel.
9. Reconnect the electrical supply. Verify operaon.
Oil Level Probe:
To check the oil level probe:
1. Turn the appliance o. Disconnect the electrical supply.
2. Open the front panel to view the relay board.
3. Locate the oil level probe wire connecon on the relay board. It is located in the upper le of the relay board and is
labeled J502. Unplug the oil level probe.
4. Using a mulmeter set to ohms, check the resistance between the two red wires. An acceptable reading is 150Ω +/- 10%.
5. Now check the resistance between the two black wires. The acceptable reading is 100Ω - 200Ω.
6. Next check each red to each black and check each wire to ground. The acceptable reading is “O.L.” or “OPEN”.
7. Reconnect the oil level probe and reassemble the front panel.
8. Reconnect the electrical supply. Check operaon of the appliance.
To replace the oil level probe:
1. Lower the front panel. Then remove the ve screws securing the component panel to the frame of the unit. Two
screws are in the lower le, two screws are in the lower right and the last screw is at the top center of the panel.
2. Remove the component panel. Make note of wire connecons of any wire you need to remove to complete this.
3. Remove the oil level probe access cover by removing the two screws. One screw is above the fuse block. The other
screw is above the safety (side on) contactor. The oil level probe should now be visible.
4. Unscrew the oil level probe from the tank. Install the new oil level probe in reverse, using food grade thread sealant
on the male threads of the oil level probe.
24VAC Transformer
To check the transformer:
1. Turn the appliance o. Disconnect the electrical supply.
2. Open the front panel and locate the transformer.
3. Note all wire connecons and then disconnect the wires from the transformer.
4. Using a mulmeter set to ohms, check pin 6 to pin 10 for resistance. Acceptable reading is 0.4Ω - 0.6Ω.
5. For 208VAC Units, check pin 2 to pin 5 for resistance. Acceptable reading is 21Ω to 22Ω.
6. For 240VAC Units, check pin 1 to pin 5 for resistance. Acceptable reading is 25Ω to 26Ω.
7. Reconnect the wiring to the transformer. Then reconnect the electrical supply.
8. Verify on the relay board that 24VAC - 28VAC is present at J135 between the blue wire and white wire.
9. Reassemble the front panel and verify operaon of the appliance.

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
13 L22-405
COMPONENT TROUBLESHOOTING (CONTINUED)
DC Power Supply:
The DC power supply has a built in overload protecon circuit. If a short or over amp condion is detected, the DC power supply will
stop outpung DC power unl the short or over amp condion is resolved. To verify operaon of the DC power supply:
1. Turn the appliance o. Verify the AC and DC fuses are good.
2. Open the front panel and locate the DC power supply. On dual units, this is located on the right side unit.
3. Check the output of the controller for DC voltage with a mulmeter set to DC. Acceptable reading is 23.5VDC-24.5VDC.
Element (HTR1, HTR2 on Schemac):
To check the operaon of each secon of the element:
1. Turn the controller o. Disconnect the electrical supply.
2. Open the door and remove the entrance box covers.
3. Note the locaon of the element wires on the contactors and then remove the element wires from the contactors.
4. Using a mulmeter set to ohms, check the following wires for resistance on each element. Acceptable reading is 14Ω -
15Ω.
a. Wire 1 to wire 4
b. Wire 2 to wire 5
c. Wire 3 to wire 6
5. Reconnect the element wires to the contactors.
6. Reconnect the electrical supply. Turn the appliance on and allow to start heang.
7. Using a clamp meter, check the amp draw on each leg of the incoming power. Each leg should read close to the amp
rang on the rang plate aached to the door.
8. Turn the appliance o and disconnect the electrical supply.
9. Reassemble the entrance box covers. Reconnect the electrical supply and verify operaon.
Safety (Side On) Contactor (K10 on Schemac):
To check the operaon of the safety (side on) contactor:
1. Turn the controller o. Disconnect the electrical supply.
2. Open the door and remove the entrance box covers.
3. Note the locaon of the contactor coil wires and the remove the wires from the contactor coil.
4. Using a mulmeter set to ohms, check the resistance between the contactor coil contacts. Acceptable reading is 6Ω-
7Ω.
5. Reconnect the contactor coil wires. Then reconnect the electrical supply.
6. Turn the controller on and check for voltage across the contactor coil contacts. A steady 24VAC - 28VAC should be
present and the contactor should be pulled in.
7. Turn the controller o and disconnect the electrical supply.
8. Reassemble the entrance box covers. Reconnect the electrical supply and verify operaon.
Cycling (Heat Demand) Contactor (K11 on Schemac):
To check the operaon of the cycling (heat demand) contactor:
1. Turn the controller o. Disconnect the electrical supply.
2. Open the door and remove the entrance box covers.
3. Note the locaon of the contactor coil wires and the remove the wires from the contactor coil.
4. Using a mulmeter set to ohms, check the resistance between the contactor coil contacts. Acceptable reading is 3Ω-
4Ω.
5. Reconnect the contactor coil wires. Then reconnect the electrical supply.
6. Turn the controller on and check for voltage across the contactor coil contacts. A steady 24VAC - 28VAC should be
present and the contactor should be pulled in when the controller is calling for heat.
7. Turn the controller o and disconnect the electrical supply.
8. Reassemble the entrance box covers. Reconnect the electrical supply and verify operaon.

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
L22-405 RO 14
COMPONENT TROUBLESHOOTING (CONTINUED)
When changing actuators, make sure the valve is in a closed posion before installing the new actuator. All replacement
actuators are shipped in a closed posion.
Return/Divert/Waste/Smart Oil Sensor Actuators:
To check the operaon of the return, divert, waste oil or smart oil sensor actuator:
1. Turn the controller o.
2. Open the door and locate the actuator you want to troubleshoot.
3. Follow the cord from the actuator to the control box mounted on the right side of the appliance.
4. Using a mulmeter set to DC voltage, insert your meter’s posive wire lead into the red wire connecon and negave
wire lead into the black wire connecon.
5. Any me the actuator valve is closed or is closing, the actuator will receive posive 24VDC.
6. Any me the actuator valve is open or is opening, the actuator will receive negave 24VDC.
7. If the actuator is not moving when the polarity switches, the actuator has failed.
8. If the polarity does not change when it should, you may have a failed relay board. Refer to relay board lter circuits
troubleshoong on the next page.
Drain Actuator:
To check the operaon of the drain actuator: DRAIN THE TANK OF ALL LIQUIDS OR MAKE SURE THE FILTER PAN IS IN PLACE AND
EMPTY BEFORE TESTING THE DRAIN VALVE
1. Turn the controller o.
2. Open the door and locate the drain actuator on the underside of the drain valve.
3. Follow the cord from the actuator to the control box mounted on the right side of the appliance.
4. Using a mulmeter set to DC voltage, insert your meter’s posive wire lead into the red wire connecon and negave
wire lead into the black wire connecon.
5. Any me the actuator valve is closed or is closing, the actuator will receive a posive 24VDC.
 On the controller, press and hold the lter key unl “” is displayed. Then press the “1” key and
“” will be displayed. At this point, pressing the “6” key will turn on the drain relay and open
the drain valve. The meter display will change to negave 24VDC. Press the “6” key again to turn o the drain
actuator relay and close the drain valve.
7. If the actuator is not moving when the polarity switches, press the white reset buon on the right side of the
actuator. If the actuator sll will not move, the actuator has failed.
8. If the polarity does not change when you press the “6” key, you may have a failed relay board. Refer to relay board
lter circuits troubleshoong on the next page.
9. Addionally you need to check signal output from the actuator to indicate if the internal switch is funconing. To test
the internal switch:
a. When the actuator is closed, use a mulmeter set to connuity and check blue to white for a closed circuit.
b. When the actuator is open, use a mulmeter set to connuity and check blue to white for a open circuit.
Hi Limit:
The hi limit is a normally closed switch designed to open at 450°F (232°C) +/- 15°F (+/- 8.3°C). If the hi limit is opening prematurely,
verify the hi-limit switch sensing bulb and capillary tube inside the vat is not touching the elements. No more than 6” of capillary
tube should be inside the tank.
To verify the hi-limit switch is closed, shut o the appliance, remove the hi-limit switch from its bracket, remove the two wires
from the hi-limit switch and use a mulmeter to check for connuity through the hi-limit switch.

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
15 L22-405
1. Auto Filter Board Heat Circuit: Refer to Figure 6. Verify the auto lter
board has DC voltage by checking for the ashing green led (LED7). If
the LED is not ashing, then no DC power is present.
To check the heat circuit of the auto lter board (Lower le corner):
1. Verify the Le AC Power LED is lit, located just above the fuse. If the AC
LED is not lit, verify 24VAC - 28VAC at J1, blue wire to white wire. This
voltage comes straight from the transformer. If no voltage, troubleshoot
the transformer. If voltage is present, verify the fuse is good.
2. On J136, verify that either a jumper is installed, or if two white wire,
unplug J136 and check the white wires for connuity. If no connuity on
the white wires, check the oat switch operaon. Also ensure
jumpers are installed on J129 and J18.
3. Turn the controller on. Verify 24VAC - 28VAC on J32, yellow wire to
white wire. If present, connue to step 4.
a. If no voltage is present, verify that the LEFT SIDE ON LED is
lit.
I. If lit, the relay board is bad and needs to be replaced.
II. If the LEFT SIDE ON LED is not lit, check that the jumper
is installed properly on J18 and that the oat switch is
in the closed (up) posion. You can verify this by
following step 2 above.
III. If the LEFT SIDE ON LED is sll not lit, either the
Auto Filter Board, Controller or Commlink cable has
failed. No electrical tesng exists for this failure.
Swap one component at a me with a known working
component to determine the failure.
4. Check the J32 connector from brown/white wire to white wire for 24VAC
- 28VAC. If present, the safety (side on) contactor should be closed.
Connue to step 5.
a. If no voltage is present, try to reset the hi limit.
b. If no voltage is present aer reseng the hi limit, either the hi
limit has failed or a wire connecon issue is present.
5. With the controller calling for heat (LED next to thermometer on
controller is lit), verify 24VAC - 28VAC on J32, red wire to white wire. If
voltage is present, the cycling (heat demand) contactor should be closed.
The heat circuit is complete and the elements should be energized.
a. If no voltage is present, verify the LEFT HEAT DEMAND LED is lit
on the auto lter board. If the LED is lit, the relay has failed and
the auto lter board must be replaced.
b. If the LEFT HEAT DEMAND LED is not lit, either the Auto Filter
Board, Controller or Commlink cable has failed. No electrical
tesng exists for this failure. Swap one component at a me
with a known working component to determine the failure.
COMPONENT TROUBLESHOOTING (CONTINUED)
Figure 6
J18
J136
HEAT DEMAND LED
SIDE ON LED
FUSE 2.5A FA
J1
J32
J34
J129
J128

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
L22-405 RO 16
Auto Filter Board Filter Circuits: Refer to Figure 7. Verify the auto lter board has DC voltage by checking for the ashing green led (LED7). If the
LED is not ashing, then no DC power is present.
• Pump Run Relay (Relay board above lter pump only):
1. To test the operaon of the pump run relay, you need to perform a resistance check as this relay receives power input from the
connector rather than the auto lter board.
a. Remove the J127 connector.
b. On the controller, press and hold the lter key unl “” is displayed. Then press the “L” key and
“” will be displayed. At this point, pressing the “6” key will turn the pump run relay on and
pressing the “6” key again will turn the pump run relay o.
c. Using a mulmeter set to ohms, ohm out pin one and two on J127 directly on the relay board. With the LED above the
relay o, the mulmeter will display “O.L.” or “OPEN”.
d. Press the “6” key on the controller to acvate the pump run relay and turn on the LED above the relay. The mulmeter
should display 0.5Ω or less.
e. Turn the controller o and then plug in J127 when nished tesng the relay.
• Divert Actuator Relay (Relay board above lter pump only):
 To test the operaon of the Divert Actuator Relay, turn o the lter motor circuit breaker then locate J127. With a mulmeter set
to DC Volts, place the meter’s posive lead in the white wire connector and the negave lead in the yellow wire connector.
 With the LED above the divert actuator relay o, the meter should display a posive 24VDC.
 On the controller, press and hold the lter key unl “” is displayed. Then press the “2” key and “
” will be displayed. At this point, pressing and holding the “6” key will turn on the divert actuator relay, return relay and
pump run relay. The meter display will change to negave 24VDC. Release the “6” key to turn o the pump run relay, close the
return valve and place the divert actuator back into the home posion. Turn on the lter motor circuit breaker.
• Return Actuator Relay:
 To test the operaon of the Return Actuator Relay, turn o the lter motor circuit breaker then locate J127. With a mulmeter set
to DC Volts, place the meter’s posive lead in the light blue wire connector and the negave lead in the brown wire connector.
 With the LED above the return actuator relay o, the meter should display a posive 24VDC.
 On the controller, press and hold the lter key unl “” is displayed. Then press the “L” key and “
” will be displayed. At this point, pressing the “6” key will turn on the return relay and pump run relay. The meter
display will change to negave 24VDC. Release the “6” key to turn o the pump run relay and close the return valve.
• Drain Valve Relay: DRAIN THE TANK OF ALL LIQUIDS OR MAKE SURE THE FILTER PAN IS IN PLACE AND EMPTY BEFORE TESTING THE DRAIN
VALVE
 To test the operaon of the Drain Actuator Relay, locate J138. With a mulmeter set to DC Volts, place the meter’s posive lead in
the red wire connector and the negave lead in the black wire connector.
 With the LED above the drain actuator relay o, the meter should display a posive 24VDC.
 On the controller, press and hold the lter key unl “” is displayed. Then press the “1” key and “
” will be displayed. At this point, pressing the “6” key will turn on the drain relay and open the drain valve. The meter
display will change to negave 24VDC. Press the “6” key again to turn o the drain actuator relay and close the drain valve.
COMPONENT TROUBLESHOOTING (CONTINUED)
DIVERT ACTUATOR RELAY
J138 J127
DRAIN VALVE ACTUATOR
Figure 7

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
17 L22-405
COMPONENT TROUBLESHOOTING (CONTINUED)
Auto Filter Board Flash Codes:
The auto lter board has two status lights, one for ltering status and one for the oil level
probe status. Both can be found near the center of the auto lter board. If these LED’s are
not lit, this would be an indicaon that no DC power is present.
• Filter Status Light (Green, LED7 )
1. Also called the “heartbeat”, this LED indicates the status of the
actuator relays.
2. If this LED is not illuminated then there is no DC power to the auto
lter board.
3. All fryers in the fryer bank should be ashing the same code.
4. Table 2 shows the dierent ash codes and their meaning.
• Oil Level Probe Status Light (Red, LED22)
1. Indicates the status of the oil level probe.
2. This is a two digit code. The rst digit is a slow ash. The second
digit is a quick ash. If the LED is only ashing 1 ash, the oil level
probe funcon is disabled.
3. The code may change at each auto lter board.
4. Table 3 shows the dierent ash codes and their meaning.
5. If a 2/5 ash code is displayed, follow the troubleshoong steps in
this document for checking the resistance of the oil level probe. An
issue exists with either the oil level probe or the auto lter board.
Code Descripon
1 Flash Draining
2 Flash Filtering
4 Flash Top O
6 Flash Disposing
8 Flash Idle
Table 2 - Status LED Flash Codes
Slow/Fast Flash Descripon
1 Flash Disabled
1/2 Flash CommLink
Failure
2/2 Flash Detecng Oil
2/3 Flash Detecng Oil,
Recent Top O
2/4 Flash Idle
2/5 Flash Oil Level Probe
Fault
Table 3 - Oil Level Probe Status
LED Flash Codes

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
L22-405 RO 18
COMPONENT TROUBLESHOOTING (CONTINUED)
Filter Pump:
• Adjusng the pressure relief valve on the pump head (Check if there is no sucon from the lter pump)
1. Turn the appliance o and allow to cool to room temperature.
2. Remove the rear access panel by removing the four screws.
3. Remove the acorn nut from the pressure relief adjustment screw. Make sure not to lose the seal under the acorn nut.
4. Loosen the retaining nut on the pressure relief adjustment screw. Do not remove the nut.
5. Using a at head screw driver, rotate the pressure relief adjustment screw clockwise unl it stops. This is the highest
pressure seng.
6. Remove any paint chips that are on the threads of the pressure relief screw. Then ghten the retaining nut and then
reinstall the acorn nut, making sure the gasket is in place between the acorn nut and retaining nut. Then reinstall the
rear access cover.
7. Place the unit back into its locaon and reconnect the electrical supply.
8. Turn the unit on and allow to heat. Once heated, perform a quick lter by pressing the lter buon on the controller
and then press number 6 for yes. The unit will automacally lter from this point.
• Removing the pump head.
 Disconnect electrical supply.
 Remove the rear access panel.
 Loosen the unions on either side of the pump head. Some oil may come out of the lines when loosening the unions.
 Remove the two bolts on the le side of the pump and the two bolts on the right side of the pump. The bolts at the
top of the pump head and the boom center of the pump head are used to disassemble the pump head once
removed from the unit.
 Pull the pump o the motor, using cauon not to damage the gasket between the pump and motor.
 Follow the above steps in reverse to reinstall the lter pump head.
• Filter motor not turning on.
 Verify the lter pump circuit breaker is in the “ON” posion and check that the lter motor power cord is plugged in.
Press the thermal overload reset on the lter motor.
 Check proper operaon of the pump run relay. See previous page for troubleshoong.
 Check the pump relay (component number 5 on page 8) for coil voltage. When the pump run relay on the auto lter
board closes, the pump relay receives 24VAC and closes. Verify the relay is closing and is sending supply voltage to the
lter motor.
 If supply voltage is going to the lter motor and sll does not turn on, replace the lter motor.
Pan In Place/Pan Not Empty Switches
 Remove the front panel. Locate J132 and disconnect.
 Using a mulmeter set to ohms, check the pan in place switch (blue wire and brown wire) for resistance. With the
lter pan installed and the door closed, a reading of 0.5Ω or less is expected. With the lter pan removed or the door
open, a reading of “O.L.” or “OPEN” is expected.
a. Test the pan in place switch with the lter pan installed and the door open and also with the lter pan
removed and the door closed.
3. Using a mulmeter set to ohms, check the pan not empty switch (violet wire and black wire) for resistance. With the
lter pan empty/lter pan oat in the down posion, a reading of 0.5Ω or less is expected. With oil in the pan/oat in
the up posion, a reading of “O.L.” or “OPEN” is expected.
4. These switches can also be checked directly by removing the access cover just above the lter pan in the rear of the
unit. The door switch (used in the pan in place circuit) can be tested by removing the two screws securing the bracket
to the frame of the unit.

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
19 L22-405
PROBE RESISTANCE CHART

BEFORE SERVICING, REFER TO PAGE 3 AND 4 OF THIS DOCUMENT FOR IMPORTANT NOTICES
L22-405 RO 20
SCHEMATICS