7-3
Problem
Probable Causes Corrective Action
M4000 displays HELP HI-
2 or HIGH LIMIT
FAILURE DISCONNECT
POWER.
Failed high limit
Shut the fryer down immediately and call
your FAS for assistance.
M4000 displays
TEMPERATURE PROBE
FAILURE.
Problem with the temperature measuring
circuitry including the probe or damaged
controller wiring harness or connector.
Shut the fryer down and call your FAS for
assistance.
Heating indicator is on,
but fryer is not heating.
Three phase power cord unplugged or
circuit breaker is tripped.
Verify that both the main power cord and
120V is fully seated in its receptacle, locked
into place and that circuit breaker is not
tripped If the problem continues call your
FAS for assistance.
M4000 displays
RECOVERY FAULT and
alarm sounds.
Recovery time exceeded maximum time
limit.
Clear error and silence the alarm by
pressing the √ button. Maximum recovery
time for electric is 1:40. If this error
continues call your FAS for assistance.
M4000 displays NO
MENU GROUP
AVAILABLE FOR
SELECTION
All menu groups have been deleted.
Create a new MENU group. Once a new
menu is created, add recipes to the group
(see section 4.10).
M4000 displays SERVICE
REQUIRED followed by
an error message.
An error has occurred which requires a
service technician.
Press (2 NO) to continue cooking and call
your FAS for assistance. In some cases,
cooking may not be available.
7.3 Troubleshooting the Auto Filtration
Problem
Probable Causes Corrective Action
Fryer filters after each
cook cycle.
Filter after setting incorrect.
Change or overwrite the filter after setting
by re-entering the filter after value in
Manager Settings, Filter Attributes in
section 4.8.
MAINTENANCE FILTER
won’t start.
Temperature too low.
Ensure fryer is at setpoint before starting
MAINTENANCE FILTER.
M4000 display shows
FILTER BUSY.
A. Another filtration cycle or filter pad
change is still in process.
B. Filter interface board has not cleared
checking system.
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.
Filter pump won’t start
or pump stops during
filtering.
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. 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 page 5-
5).
C. Call your FAS for assistance.
Drain valve or return
valve stays open.
A. VIB board has failed.
B. Actuator has failed.
Call your FAS for assistance.
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