Combustion air fan motor
â–¶ How to fix
Check the auxiliary heater cable harness for signs of a short circuit. Check the operation and state of the combustion air fan motor of the auxiliary heater.Check the control unit.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
Short circuit or overload on combustion air fan motor of auxiliary heater.
Possible cause
Electrical or mechanical fault in combustion air fan motor of auxiliary heater. Voltage supplied too high or fault on the control unit.