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Carrier 58MXA040F14112 Furnace Door Switch
A furnace door switch is a safety feature that stops the fan and ignitor from switching on so as to avoid injuries. It is important to get the part changed as soon as you can if it is causing you problems.
Signs your safety switch on the furnace door will not live much longer
- The door mechanism looks like it is wrong
- The furnace will not fire up even with the door closed
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