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International Comfort Products C9MPT075F12A1 Furnace Door Switch
The job of the furnace door switch blocks the fan and ignition sequence being triggered to start in order to prevent injury and fire. You should really have it swapped out ASAP if it is damaged so as to prevent something bad happening.
Major signs the safety door switch will not live much longer
- The furnace door switch appears to be breaking apart
- The furnace does not even thing about starting even with the door closed
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