Carrier Furnace Inducer Motor Fault

From the carrier 58mvp service manual.

Carrier furnace inducer motor fault.

Open the door panel to get access to your carrier furnace. Added to ensure heating systems are able to comply with the most recent government mandated efficiency standards it is designed to facilitate the removal of gases and air from the furnace and out to the chimney. This is always helpful to pinpoint the problem to the inducer motor in the first place. One common issue with any blower motor in hvac systems is a bad capacitor.

Fault code 11 means the inducer motor is functioning properly. Blower motor fault indicates the blower failed to reach 250 rpm or the blower failed to communicate within the prescribed time limits. Draft inducer motor failure. Your furnace may also give you fault codes related to draft inducer blowers.

Part number part description part link 20054001 carrier 20054001 draft inducer motor assembly view carrier part 20054001 2272065 carrier 2272065 draft inducer motor assembly view carrier part 2272065 2272158 carrier 2272158 draft inducer motor assembly view carrier part 2272158 308088 751 carrier 308088 751 draft inducer housing view carrier part 308088 751 308118 405 carrier. Leak in tubing defective pressure switch restricted vent bad inducer motor rule out motor it works if the tube off the induced draft blower housing are plugged it will cause this trip. These tubes are the small one coming off the firebox and motor housing going to a drain. Thirty seconds after being turned on or ten.

Fault code 42 means inducer outside valid speed range this indicates that 10 seconds have elapsed and the inducer motor has not started or the inducer motor has started but is not operating at expected r p m. The draft inducer blower is a relatively new component found on modern furnace units. Status code 42 inducer motor fault step action go to does the voltage fluctuate as described in step 28. Take out the old air filter and replace it with a new one.

Locate the current filter.