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International Comfort Products PYPA Furnace Door Switch
A furnace door switch is a safety feature that stops the fan and ignition sequence from activating so as to stop a potential explosion. It is vital that this part be changed ASAP if it is defective in some way or another.
Hints the switch on your furnace door is not going to last much longer
- The system will not even begin to start even with the door closed
- The furnace door switch looks as if it has been breaking apart
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