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Carrier 50XL-A36 Furnace Door Switch
The furnace door switch is a safety switch which prevents the fan and ignition sequence being triggered to start so as to avoid injuries. It is extremely important that the device is replaced as soon as possible if it is not working in order to prevent injuries.
Symptoms of a dying safety switch on the furnace door
- The system will not fire up whether the door is open or closed
- The door mechanism looks as if it has been not there
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