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Carrier 58STA11010022 Furnace Door Switch
This switch prevents the blower and ignition sequence from switching on in order to prevent injury and fire. Do not try to fix it, just have it switched out as quick as you can if it is defective.
Key indicators that my furnace door switch really needs to be replaced?
- The HVAC system does not function with the door closed
- The safety door switch looks chipped
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