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Carrier 50XP042300 Furnace Door Switch
A furnace door switch is a switch that inhibits the vent fan and ignition sequence from starting so as to avoid injuries. It is important to get the part traded for new one as soon as possible especially if you think it is defective.
Simple indications of a barely functioning safety door switch
- The HVAC system will not run whether the door is off or on
- The door mechanism appears as though it has been stuck
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