Combustion air fan motor
â–¶ How to fix
Check that the magnet is on the fan wheel.Check that the fan wheel is not jammed.Check the combustion air fan motor. See Internal wiring diagram under Connections. Measurement points 1 and 2 in connector A for the control unit. Resistance: Approximately 4 ohms.If necessary, renew the control unit.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
Fan wheel of combustion air fan motor is not moving.
Possible cause
The fan wheel is blocked, the fan wheel is turning too quickly, or the magnet is missing from the fan wheel.