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Carrier 58STX04510012 Furnace Door Switch
The job of the furnace door switch inhibits the fan and burner from turning on so as to stop a potential explosion. You should really have it changed as soon as you can if it is defective.
Important hints your safety switch on the furnace door is in dire straights
- The safety door switch has been wrong
- The HVAC system will not even begin to start with the door closed
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