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International Comfort Products T8MPT075F14B1 Furnace Door Switch
The job of the furnace door switch blocks initial fan and ignitor being triggered to start in order to prevent injury and fire. Do not waste time and have it traded for new one immediately if you can, especially if you suspect it is not working properly.
Subtle cues of a weak safety furnace door switch
- The whole system will not operate whether the door is open or closed
- The door switch seems bent badly
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