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Carrier 58DLA09010014 Furnace Door Switch
The job of the furnace door switch prevents initial fan and ignition sequence from starting so as to avoid injuries. You should have the switch be substituted for a new part immediately if you can, if you see that it is broken.
Simple signals your furnace door switch will not live much longer
- The safety door switch is breaking off
- The HVAC system will not even begin to start whether the door is open or closed
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