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International Comfort Products GNE050B12A1 Furnace Door Switch
The furnace door switch is a safety switch which blocks the blower and other risky devices from starting so as to stop a potential explosion. You should really have it switched out promptly if you suspect that it is not working.
Easy warnings of a dying switch on the furnace door
- The system does not operate whether the door is open or closed
- The safety door switch is worn down
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