CHAPTER 14 FILTER SYSTEM TROUBLESHOOTING
14-2
Pump Motor Activation
Filter System Operation
Does
oil return to
the selected
frypot?
No Oil Returned
1. Pump to cabinet oil return hose kinked or blocked.
2. Misadjusted oil return valve linkage.
3. Blocked or plugged drain pan check valve.
4. Oil return line plugged.
Oil Returns Slowly
1. Pump to cabinet oil return hose kinked or blocked.
2. Misadjusted oil return valve linkage.
3. blocked or plugged drain pan check valve.
4. Oil return line plugged.
5. O-ring missing or defective.
6. Incorrect filter paper or pad.
7. Filter screen/paper/pad clogged.
8. Filter pan incorrectly set up (assemble per this manual).
Oil Returns to the Wrong Frypot
1. Operated the wrong filter handle.
2. Misadjusted oil return valve linkage.
3. Defective oil return valve (did not close all the way).
Filter system
operation is normal
NO
YES
Assemble filter pan, drain
hot cooking oil, and turn
pump handle on selected
fryer to the ON position.
Does
pump
start?
1. No line voltage to the motor.
a. Broken or improper wire connection.
b. Relay not closing.
1) Missing 24V
2) Broken or improper wire connection.
3) Pump microswitch open or defective.
4) Defective 24V filter transformer.
c. Defective relay.
2. Thermal overload tripped.
3. Clogged pump preventing motor from turning.
4. defective motor.
Pump/motor
actuation is normal
NO
YES
Momentarily turn filter
handle to the ON position.
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