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Carrier 58MXB100F10116 Furnace Door Switch
The furnace door switch prevents initial fan and other risky devices from starting so as to stop a potential explosion. Do not waste time and have it exchanged for a new one quickly if it is defective.
Major indications of a worsening safety furnace door switch
- The furnace door switch looks as if it has been damaged
- The HVAC system will not engage even when you close the door
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