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Carrier 48XZN042090300 Furnace Door Switch
A furnace door switch is a safety feature that prevents initial fan and burner being triggered to start in order to prevent injury and fire. You should have the switch be exchanged for a new one as soon as you can if you see that it is broken.
What red flags are there that my switch on the furnace door is on its last leg?
- The whole system does not run even with the door closed
- The door mechanism is removed
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Before buying or purchasing any Carrier 48XZN042090300 replacement part, do your due diligence and double check the model number and also make a visual comparison in order to be sure the correct furnace door switch is the one being purchased. Make safety your number one priority when replacing parts in an HVAC environment. If you are in doubt about anything call a pro. Don't be sorry. Be safe.
Feel free to download your manual for help.
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