heating and cooling
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:

Flame sensor
Draft inducer motor
Control board
Limit switch
Flame rollout limit switch
Wall thermostat
Gas valve assembly
Pressure switch

Click here to purchase a replacement furnace igniter:

Click here to purchase the multimeter used in this part testing video:

How to disassemble your furnace:

For more DIY videos including part replacement and help finding your model visit the repair help section of our website:

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

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