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International Comfort Products GPCM60H140F Furnace Door Switch
A furnace door switch is a safety feature that inhibits the blower and ignition sequence being triggered to start so as to avoid injuries. You should have the switch be replaced swiftly if it is defective in some way or another.
Warnings of a laboring furnace door switch
- The system will not fire up whether the door is open or closed
- The furnace door switch appears to be breaking off
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