Measures in case of malfunction

When a malfunction occurs, the fuses and connectors must be checked for proper condition and firm seating.

In the event of a fault, the heater goes into fault lock-out, there is no fault display on the control element.

Before you visit a Webasto service center, try to deactivate the fault lock-out.

You can rectify the following faults yourself:

Fault description

Possible cause

Corrective measures

Heater switches off automatically (= fault switch-off).

No combustion after start and restart;
flame goes out during operation.

Switch heater off and on gain (no more than 2x).

Heater will not switch on.

No power applied to heater.

Check power supply to heater and ground terminal points.