Welbilt Frymaster McDonald's LOV BIGLA30 Gen II Series Installation, Operation And Maintenance Manual page 83

PROBLEM
M3000 display shows
filter busy.
Drain valve or return
valve stays open.
Filter pump won't start
or pump stops during
filtering.
M3000 display shows
INSERT pan.
Auto filtration won't
start.
Filter Pump runs, but
oil return is very slow.
M3000 display shows
OIL SENSOR
FAIL.
7.2.4 Auto Top Off Problems
Problem
Frypots top off cold.
PROBABLE CAUSES
A. Another filtration cycle or filter
pad change is still in process.
B. MIB has not cleared checking
system.
A. AIF board has failed.
B. Actuator has failed.
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. Filter pan is not fully set into fryer.
B. Missing filter pan magnet.
C. Defective filter pan switch.
A. Oil level too low.
B. Check that MIB board is not in
manual mode.
C. Check to see that the MIB cover is
not damaged and depressing the
buttons.
D. AIF disable is set to yes, blue light
doesn't light.
E. Filter relay has failed.
A. Improperly installed or prepared
filter pan components.
Oil sensor may have failed.
Probable Causes
Incorrect setpoint.
CORRECTIVE ACTION
A. Wait until the previous filtration cycle
ends to start another filtration cycle.
Change filter pad if prompted.
B. Wait one minute and try again.
Call your FAS for assistance.
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-
7).
C. Call your FAS for assistance.
A. Pull filter pan out and fully reinsert into
fryer.
B. Ensure the filter pan magnet is in place
and replace if missing.
C. If the filter pan magnet is fully against
the switch and computer continues to
display INSERT pan, switch is
possibly defective.
A. Ensure oil level is above the top oil
level sensor.
B. Ensure MIB board is in "A" automatic
mode. Power cycle the fryer.
C. Remove and replace cover and see if
filtration will start.
D. Set AIF disable in Level 1 to no.
E. Call your FAS for assistance.
A. Remove the oil from the filter pan and
replace the filter pad, ensuring that the
filter screen is in place under the pad.
Verify, if using a pad, that the rough side
is facing up.
Verify that O-rings are present and in
good condition on filter pan connection
fitting.
Call your FAS for assistance.
Ensure setpoint is correct.
7-4
Corrective Action