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Samsung UCC2800C Furnace Door Switch
A furnace door switch is a safety feature that inhibits the blower and burner from starting so as to stop a potential explosion. You must have the device swapped out as soon as possible if you suspect that it is not working.
Red flags of a defective safety switch on the furnace door
- The HVAC system does not begin to work with the door closed
- The safety door switch has been not there
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