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Carrier 25HPA430A0030010 Furnace Door Switch
A furnace door switch is a switch that blocks initial fan and ignitor from switching on so as to avoid injuries. You must have the device changed as quick as you can if it is causing you problems.
Important red flags of a barely functioning safety door switch
- The switch seems to be broken completely
- The HVAC system does not operate even when you close the door
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