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Carrier 38YCS036 Furnace Door Switch
The furnace door switch is a safety switch which prevents initial fan and burner from turning on so as to stop a potential explosion. It is extremely important that the device is replaced promptly if you suspect that it is not working.
Chief elements to watch for in a bad furnace door switch
- The furnace door switch seems to be broken badly
- The HVAC system will not even begin to start with the door closed
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