Webasto Thermo 50 Operating Instructions - page 3
Fault Code Display
Fault Codes on the Display of the Combination Timer
NOTE:
!
No start-up
Flame extinguished (at least > 5)
Undervoltage or overvoltage
Premature flame detection
Temperature sensor interruption or
temperature sensor short-circuit
Metering pump interruption or
metering pump short-circuit
Fan motor interruption or
fan motor short-circuit or
incorrect fan motor speed
Pencil-type glow plug/
interruption or
pencil-type glow plug/
short-circuit
Overheating
Circulating pump interruption or
circulation pump short circuit
flame detector
flame detector
F 01
F 02
F 03
F 04
F 05
F 06
F 07
F 08
F 09
F 10
After the occurrence of a malfunction, the fault is indicated on the display of the digital
timer if the heater is equipped with a standard digital timer.
If the heater is activated by the switch, the types of malfunctions are indicated by
coded flashing signals via the operation indicator light during the after-run period of
the heater. The coded flashing signals correspond to the numbers in the table below
Troubleshooting
In the event of a malfunction, fuses and electrical connections should be checked for
proper condition and security.
In the event of a malfunction, the heater will shut down in its fault lock-out mode.
Following any fault lock-out condition, coded flashing signals will be emitted by the
operation indicator, or a fault code will appear on the display of the timer. For details on
the meaning of the fault code, refer to the last page.
Before you consult a Webasto service center, try to deactivate the fault lock-out by
switching the heater off and back on again. A fault lock-out condition may also be reset
by briefly removing the 15 amp fuse (blue) with the heater in the switched-on state.
25A
15A
1A
If this action does not correct the malfunction, consult your authorised Webasto dealer
Note:
The heater will start operating as soon as the fuse is replaced!
!
Subject to changes