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International Comfort Products N8MPN100J22A1 Furnace Door Switch
The job of the furnace door switch stops the vent fan and burner from activating so as to stop a potential explosion. It is extremely important that the device is traded for new one quickly if it is causing you problems.
Some clues your furnace door switch is not going to last much longer
- The whole system will not operate even when you close the door
- The switch is bent badly
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