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International Comfort Products H8MPN100F20A1 Furnace Door Switch
A furnace door switch is a safety feature that blocks the vent fan and gas ignition being triggered to start in order to prevent injury and fire. It is vital that this part be exchanged for a new one as soon as you can if you suspect that it is not working.
Major symptoms your furnace door switch needs to be replaced
- The safety door switch seems chipped
- The system does not operate whether the door is off or on
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