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International Comfort Products GPSM36S100F Furnace Door Switch
The furnace door switch is a safety switch which prevents the fan and ignition sequence from starting in order to prevent injury and fire. It is important to get the part substituted for a new part promptly if it is defective.
Key clues of a bad safety door switch
- The switch seems to be breaking apart
- The furnace does not even thing about starting whether the door is off or on
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