Heating Output Only At Selector Position "Max" (Engaged)

Cause/remedy:

















a) Short in in-car or temperature sensor for heat exchanger, possible in their feed lines.

Test electric lines, remove short, renew temperature sensor, if required.

b) Short in temperature selector.

Renew temperature selector or remove short in feed line. Perform test for short against ground.

c) Electronic switching unit for temperature control (9) defective.

If required, renew electronic switching unit for temperature control.