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International Comfort Products T9MPV050F12A1 Furnace Door Switch
A furnace door switch is a safety feature that blocks initial fan and gas ignition being triggered to start in order to prevent injury and fire. It is quite important to have it traded for new one as soon as you can if you see that it is broken.
Important clues of a deteriorating switch on the furnace door
- The furnace will not even begin to start whether the door is open or closed
- The door switch is fallen off
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