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Carrier 38CKC036 Furnace Door Switch
A furnace door switch is a safety feature that inhibits the fan and ignition sequence from switching on so as to stop a potential explosion. It is vital that this part be replaced quickly if you find it to be faulty.
Clues of a declining switch on the furnace door
- The door mechanism looks like it is chipped
- The furnace does not run whether the door is off or on
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