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International Comfort Products T9MPT075F14B1 Furnace Door Switch
A furnace door switch is a safety feature that inhibits initial fan and burner from switching on so as to stop a potential explosion. It is imperative that the switch be exchanged for a new one immediately if you can, especially if you suspect it is not working properly.
Major warnings poorly running furnace door switch
- The switch looks chipped
- The furnace cannot run whether the door is off or on
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