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Samsung UH052CAV Furnace Door Switch
A furnace door switch is a safety feature that blocks the fan and ignition sequence from switching on in order to prevent injury and fire. It is important to get the part replaced ASAP especially if you suspect it is not working properly.
Simple signals your furnace door switch has little life left
- The door switch seems worn
- The HVAC system will not start even when you close the door
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