Fault code output
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18
Fault code output
The heater is able to identify faults on individual components and during
the operation.
18.1. Manual heater control
The control panel gives out the fault code in a flashing mode.
After a series of 5 fast GREEN flashes, the fault code output will be a re-
peated sequence of long RED flashes. This procedure is repeated until the
heater is switched off. The meaning of the number of red flashing pulses
is contained in Tabelle 1, “Fault messages of manual heater control”.
After that, again there will be 5 fast GREEN flashes.
Rectify the cause of the fault.
To reset the fault, switch the heater off, wait at least 5 seconds and then
switch the heater on.
If serious malfunctions such as overheating or failure to start reoccur, the
heater is locked and can be put back into service by deleting the
failures.
To do this, the power supply must be disconnected (e.g. by removing all
3 fuses in the order 5 A, 10 A, and 15 A; The fuses are then reinstalled in
the reverse order while the device is switched on (see Operating Instruc-
tions, mode selector switch A in Position 1, 2, 3, 4 or 5), however the heat-
er is not running (can be recognised from the noise of the heater).
Deleting failures can also be done with the Webasto Thermo Test PC-Diag-
nosis.
If a fault occurs, the heater stops. In case of electrical safety/drain valve
fault (17 red flashes), heating of the interior is still possible.
Fig. 57: Example of fault code
“n” x red
5 x green
5 x green
1
2
“n”
