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International Comfort Products C8MPN100J20A1 Furnace Door Switch
A furnace door switch is a safety feature that stops the fan and ignition sequence being triggered to start so as to avoid injuries. It is vital that this part be swapped out as soon as you can if it is not working in order to prevent injuries.
General warnings of a deteriorating safety door switch
- The HVAC system does not run whether the door is off or on
- The door switch seems beat up
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