Goodman Furnace: Circulator blower motor not running when it should be
Circulator blower motor not running when it should be on a Goodman furnace: Circulator blower not running on a call for heat or airflow.
Applies to: 34.5 in chassis gas furnaces
Common causes of circulator blower motor not running when it should be
- Loose or disconnected wiring at the circulator motor power leads, because a pulled plug is cheaper than a motor
- Open circuit in the inductor or loose inductor wiring, on 3/4 HP and 1 HP models only
- Failed circulator blower motor
How to fix circulator blower motor not running when it should be: step by step
- Power off before repair, then inspect the motor power lead connections. Tighten or correct them, since a loose lead gives no power to the motor.
- On 3/4 HP and 1 HP models, check for a continuous circuit through the inductor with a meter. Replace it if open or shorted.
- With power restored, check that line voltage reaches the motor leads on a call, since no voltage points to the control or wiring.
- Check the circulator blower motor and replace it if necessary.
- Spin the wheel by hand with power off to make sure it is free.
Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.
If the unit shows an error code, look it up: Goodman Furnace codes
Source: Goodman GMVC96 Service and Troubleshooting, p. 62. Written in our own words as a summary; always check the original manual.
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.