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Carrier 58MXA100F14120 Furnace Door Switch
A furnace door switch is a switch that inhibits the draft inducer and ignitor from activating so as to stop a potential explosion. You must have the device substituted for a new part immediately if you can, if you see that it is broken.
What are some hints that my furnace door switch is on its last leg?
- The furnace does not function whether the door is open or closed
- The furnace door switch appears to be breaking apart
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