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International Comfort Products PGAD24D1K5 Furnace Door Switch
The furnace door switch blocks the vent fan and gas ignition from switching on so as to stop a potential explosion. It is imperative that the switch be changed as soon as you can if you suspect that it is not working.
Clues to watch for to know your furnace door switch will not last the year
- The HVAC system does not operate even when you close the door
- The switch appears to be broken badly
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