6-3
PROBLEM PROBABLE CAUSES CORRECTIVE ACTION
Fryer does not heat.
A. Oil level float switch stuck.
B. Gas valve is not turned on.
C. Manual gas shut off valve closed.
D. Improperly connected quick
disconnect fitting on gas line.
E. Ignition module issue
A. Ensure the oil level float switch is clean and moves
freely up and down.
B. Turn the gas valve knob to the ON position.
C. Verify that any in-line manual shut off and gas
main valve is open.
D. Verify that the quick-disconnect fitting on the
flexible gas line is firmly connected to the fryer.
E. Contact your FAS for service.
Fryer is operating
normally, but recovery is
slow when cooking.
Improper gas pressure. Contact your FAS for service.
Fryer is operating
normally but produces a
popping sound when
burners ignite.
Dirty or obstructed gas valve vent tube
(non-CE fryers only).
Clean per instructions in Chapter 5 of this manual.
Signs of excessive
temperature; oil scorches
and quickly becomes
discolored.
A. Improper gas pressure.
B. Oil used is of inferior quality and/or
oil has been used too long.
C. Dirty frypot.
A. Contact your FAS for service.
B. Replace oil.
C. Ensure frypot is clean when refilling with new oil.
Fryer will not reach the
temperature setting.
A. Incorrect location of temperature
sensor probe or defective
temperature sensor.
B. Loose wiring/wire connection.
A. Contact your FAS for service.
B. Contact your FAS for service.
Fryer temperature is
erratic.
A. Bent probe A. Straighten the probe.
Fryer oil temperature
cannot be controlled; fryer
runs at high-limit
temperature.
Defective temperature probe. Contact your FAS for service.
FQ4000 displays
MISCONFIGURED ENERGY
TYPE
Energy type in fryer setup is incorrect.
Ensure that the fryer is configured properly for the
correct energy type.
FQ4000 displays VAT ID
CONNECTOR NOT
CONNECTED
Controller locator missing or
disconnected.
Ensure the 6-pin locator is connected to rear of
controller and it properly grounded in control box.
Controller locks up. Controller error.
Remove and restore power to the controller. If
problem persists, call your FAS for assistance.
6.2.2 Error Messages and Display Problems
Problem Probable Causes Corrective Action
FQ4000 displays E19
HEATING FAILURE.
Failed controller, failed transformer, failed SIB
board, open high-limit thermostat.
Call your FAS for assistance.
FQ4000 display is in wrong
temperature scale
(Fahrenheit or Celsius).
Incorrect display option programmed.
Toggle between F° to C° by entering Manager
settings, temperature and toggling the
temperature scale. Turn the controller on to
check temperature. If the desired scale is not
displayed, repeat.
FQ4000 displays HOT-HI-1.
Frypot temperature is more than 410ºF (210ºC)
or, in CE countries, 395ºF (202ºC).
Shut the fryer down immediately and call your
FAS for assistance.
FQ4000 displays HELP HI-2
or HIGH LIMIT FAILURE
DISCONNECT POWER.
Failed high limit
Disconnect power from the entire fryer
immediately and call your FAS for assistance.
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