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5.3
Troubleshooting the Auto Filtration
Problem
Fryer filters after
each cook cycle.
Clean and Filter
won't start.
FQ4000 display
shows FILTER BUSY.
Filter pump won't
start or pump stops
during filtering.
Drain valve or
return valve stays
open.
FQ4000 display
shows INSERT pan.
Probable Causes
Filter after setting incorrect.
Temperature too low.
A. Another filtration cycle or filter
pad change is still in process.
B. Filter interface board has not
cleared checking system.
A. Power cord is not plugged in or
circuit breaker is tripped.
B. Pump motor has overheated
causing the thermal overload
switch to trip.
C. Blockage in filter pump.
A. VIB board has failed.
B. Actuator has failed.
A. Filter pan is not fully set into fryer.
B. Missing filter pan magnet.
C. Defective filter pan switch.
Change or overwrite the filter after
setting by re-entering the filter after
value in Manager Settings, Filter
Attributes in section 1.8 of the
FQ4000 controller manual.
Ensure fryer is at setpoint before
starting a Clean and Filter.
A. Wait until the previous
filtration cycle ends to start
another filtration cycle. Change
filter pad if prompted.
B. Wait 15 minutes and try again.
A. Verify that the power cord is
fully plugged in and the circuit
breaker is not tripped.
B. If the motor is too hot to touch
for more than a few seconds,
the thermal overload switch
has probably tripped. Allow the
motor to cool at least 45
minutes then press the Pump
Reset Switch (see section 2.1.2
of
manual).
C. Call your FAS for assistance.
Call your FAS for assistance.
A. Pull filter pan out and fully
reinsert
controller does not display P.
B. Ensure the filter pan magnet is
in place and replace if missing.
C. If the filter pan magnet is fully
against
controller continues to display
INSERT PAN, switch is possibly
defective.
5-4
Corrective Action
the
FQ4000
controller
into
fryer.
Ensure
the
switch
and
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Troubleshooting
