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International Comfort Products PYMC30G5 Furnace Door Switch
The furnace door switch inhibits initial fan and other risky devices from activating in order to prevent injury and fire. It is important to get the part switched out as soon as possible if it is defective in some way or another.
Important red flags of an ineffective safety door switch
- The whole system will not fire up whether the door is open or closed
- The furnace door switch seems to be broken completely
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