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Carrier 38TPA036 Furnace Door Switch
A furnace door switch is a switch that blocks the vent fan and ignition sequence from switching on so as to stop a potential explosion. You should have the switch be substituted for a new part as quick as you can if it is not working in order to prevent injuries.
Important clues of a worsening switch on the furnace door
- The system will not run whether the door is off or on
- The furnace door switch appears as though it has been broken
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