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International Comfort Products PHAD24N1K1 Furnace Door Switch
A furnace door switch is a safety feature that prevents the fan and burner from activating so as to stop a potential explosion. It is vital that this part be substituted for a new part immediately if you can, if you see that it is broken.
General warnings to watch for in a failing furnace door switch
- The whole system does not begin to work even when you close the door
- The furnace door switch has been chipped
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