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Carrier 50XT-A42 Furnace Door Switch
The furnace door switch is a safety switch which inhibits initial fan and gas ignition being triggered to start in order to prevent injury and fire. It is imperative that the switch be exchanged for a new one swiftly if it is causing you problems.
What warnings should I watch out for to know if my safety switch on the furnace door is in need of a replacement?
- The door switch looks like it is chipped
- The system cannot run even with the door closed
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