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Carrier 50JS036300 Furnace Door Switch
The furnace door switch is a safety switch which blocks the blower and ignitor from turning on so as to stop a potential explosion. It is crucial to have this part swapped out at once if you suspect that it is not working.
Major indications of a faulty safety door switch
- The HVAC system does not even thing about starting even when you close the door
- The safety door switch looks bent badly
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