But before you make the call, be sure to try some of the gas furnace troubleshooting tips described below. You may be able to resolve some issues yourself, or you might just confirm that the trouble is more suited for a qualified HVAC technician. Along the way, be sure to review our su...
1. Disconnect wiring from blower control center. Tag each wire as it is disconnected from the old furnace control center. Disconnect all wiring hookups.2. Remove existing blower control center.3. Install the ICM275 fan control center into the control center box. Be sure that the top edge ...