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International Comfort Products HHP460GKA1 Furnace Door Switch
The furnace door switch is a safety switch which blocks the blower and ignitor from starting so as to stop a potential explosion. You should have the switch be replaced at once especially if you suspect it is not working properly.
Clues to watch for to know the safety door switch will die soon
- The whole system will not run whether the door is open or closed
- The door switch is chipped
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