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International Comfort Products PGC036K080A Furnace Door Switch
A furnace door switch is a safety feature that prevents the blower and ignition sequence from starting so as to stop a potential explosion. It is important to get the part switched out immediately if you can, if it is defective.
Some warnings your furnace door switch is in dire straights
- The furnace will not start whether the door is open or closed
- The switch looks as if it has been bent
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