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Carrier P4 Furnace Door Switch
A furnace door switch is a safety feature that inhibits initial fan and ignitor from turning on so as to stop a potential explosion. You should really have it substituted for a new part as quick as you can if it is defective in some way or another.
Chief elements of a bad safety furnace door switch
- The whole system cannot run whether the door is open or closed
- The door switch has been broken completely
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Before buying or ordering a replacement furnace door switch for your Carrier P4 do your best and cross-check the model number and also make a visual comparison in order to be sure the correct furnace door switch is being ordered. The installing of a new furnace door switch is not difficult assuming you have the time and have the tools to do it right.
Feel free to download your manual for help.
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