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International Comfort Products HHP242AKA1 Furnace Door Switch
A furnace door switch is a safety feature that prevents the fan and ignitor from starting so as to stop a potential explosion. You must have the device substituted for a new part quickly especially if you suspect it is not working properly.
Key indicators that my safety switch on the furnace door is on its last leg?
- The furnace cannot run whether the door is off or on
- The door switch has been beat up
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