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International Comfort Products T9MPT050F12B1 Furnace Door Switch
The furnace door switch is a safety switch which inhibits the draft inducer and burner being triggered to start in order to prevent injury and fire. It is vital that this part be substituted for a new part quickly if it is defective in some way or another.
Red flags of a weak switch on the furnace door
- The whole system does not even thing about starting even when you close the door
- The switch looks like it is chipped
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