Fault
code
Fault Comment
F27
High pressure from circu-
lation pump.
The pressure (-B04) is >130 kPa.
Possible action:
a. Check that no nozzles or spray arms are blocked.
F28
Low temperature in dryer.
The temperature (-B05) has not risen to 20 degrees C below the
set value after two minutes.
Possible action:
a. Check that there is power on all phases up to the element.
F29
Faulty temperature sen-
sor in dryer.
The temperature (-B07) is <0 °C or >130 °C.
Possible action:
a. Check the temperature sensor (for open or short circuit)
F31
Faulty temperature
sensor in wash chamber.
Independent. The temperature (-B07) is <0 °C or >130 °C.
Possible action:
a. Check the temperature sensor (for open or short circuit)
F32
Faulty temperature
sensor in dryer.
The temperature (-B05) is <0 °C or >130 °C.
Possible action:
a. Check the temperature sensor (for open or short circuit)
F33
Incorrect temperature in
wash chamber.
Wash temperature (-B07) has not risen by at least 10 degrees C
after eight minutes’ washing.
Possible action for an electrically-heated machine:
a. Check that there is power on all phases up to the elements.
b. Check the voltage before and after the overheat cutout. If an
overheat cutout has tripped, both cutouts must be replaced.
The overheat cutouts are not resettable.
Possible action for a steam-heated machine:
a. Check the steam valve.
b. Check that the ball valve is open and that the filter in the
incoming steam is clean.
c. Check steam pressure (see installation instructions).
d. Check condensate drain.
e. Check that there is no back-pressure in the condensate drain.
F34
Faulty temperature
sensor in wash chamber.
Wash temperature (-B07), dependent and independent, differ by
more than ±3 degrees C for three seconds.
Possible action:
a. Check the calibration of the temperature sensor (see “Cali-
bration” in the section entitled Repair and adjustment)
b. Check the temperature sensor.
F35
Incorrect temperature in
booster tank.
The water temperature (-B06) has not risen by at least 10 de-
grees C in five minutes.
Possible action:
a. Check that there is power on all phases up to the elements.
b. Check the voltage before and after the overheat cutout. If an
overheat cutout has tripped it must be replaced. The overheat
cutouts are not resettable.
F36
Fault message from
independent monitoring
system.
Correct the fault according to the fault message on the
monitoring system.
F37
Temperature in wash
chamber too high.
The temperature is more than 5 degrees C above the set value.
Possible action:
Check that the heating contactor is not stuck.
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