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International Comfort Products PYMC36G4 Furnace Door Switch
The furnace door switch is a safety switch which inhibits the blower and ignition sequence from turning on so as to avoid injuries. Do not try to fix it, just have it switched out as soon as you can if you suspect that it is not working.
Major clues your safety switch on the furnace door needs replacing ASAP
- The door mechanism has been broken
- The system does not even thing about starting whether the door is off or on
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