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International Comfort Products GPFM42K080F Furnace Door Switch
The furnace door switch is a safety switch which inhibits the blower and ignitor from activating so as to stop a potential explosion. Do not waste time and have it switched out quickly if it is causing you problems.
Clues of an inadequate switch on the furnace door
- The HVAC system does not begin to work whether the door is off or on
- The furnace door switch looks as if it has been not there
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