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28
Diagnosis/Cause
The handle heating is switched on when the
red mark
1
on the switch is visible.
Diagnosis:
Heating in both rear and front
handles not working.
Cause:
Generator defective, interruption of
current.
Diagnosis:
Heating in rear or front handle not
working.
Cause:
Short-circuit in the affected handle.
Diagnosis:
Both handles are heated
constantly or intermittently, although the
heating switch is on
OFF
.
Cause:
Short-circuit at or in switch, insulation
cap is damaged or missing.
Expose wire for testing
Carefully lever the handle heating switch out
of the tank with a small screwdriver.
Remove the side cover (two screws).
Disassemble fan housing.
EIN
AUS
1
13 HANDLE HEATING
ON
OFF