Furnace not igniting or heating? This video demonstrates how to test an igniter on a furnace. The igniter is the most commonly replaced part on a furnace that won’t ignite or heat.
Other commonly replaced parts for a furnace that won’t ignite or heat are:
Draft inducer motor
Flame rollout limit switch
Gas valve assembly
All of the information provided in this part testing video is applicable to the following brands:
Amana, Bryant, Carrier, Coleman, Lennox, Payne, Rheem, Trane, York