Uploaded March 2026 | Updated September 2026, 7 hours ago

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Furnace not heating? Comfort Maker / ICP furnace troubleshooting. In this HVAC repair I diagnose a forced air furnace that appears to have no power. After checking breaker, service switch, and safety switch I trace the issue to a failed relay on the control board.
Using a simple relay flick/tap test, I prove the control board relay is failing and the furnace needs a replacement board.
This quick troubleshooting method can help DIYers and HVAC techs diagnose no heat furnace problems quickly.

#HVAC
#FurnaceRepair
#NoHeat
#HVACTech
#FurnaceTroubleshooting
#HomeRepair
#DIYHVAC
#HVACLife
#Shorts
#FixIt
#HomeMaintenance