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Carrier FE4ANF005000 Furnace Door Switch
The furnace door switch blocks the blower and ignitor from starting so as to stop a potential explosion. It is extremely important that the device is swapped out as quick as you can if it is causing you problems.
Simple warnings that your safety door switch is about to stop working?
- The door switch looks worn down
- The whole system does not run whether the door is open or closed
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