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Carrier 25HPA548H0030010 Furnace Door Switch
The furnace door switch is a safety switch which prevents the blower and gas ignition from starting so as to stop a potential explosion. It is vital that this part be switched out as soon as you can if you suspect that it is not working.
Signs your safety switch on the furnace door should need replacing
- The door switch has been chipped
- The HVAC system will not operate with the door closed
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