Fault Code 1414

Fault code 1414

Combustion air blower

Diagnostic conditions
- Ignition on
- Internal auxiliary heater control unit function test

Possible cause of fault
- Line from air filter to combustion air blower blocked
- Short circuit to ground
- Short circuit to B+
- Open circuit in wiring
- Auxiliary heater control unit faulty

Affected pins
-

Diagnosis/troubleshooting