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Goodman GDS81155CXCB Furnace Door Switch
This switch blocks the draft inducer and gas ignition from switching on so as to stop a potential explosion. You should have the switch be traded for new one as soon as possible if you find it to be faulty.
Key clues to watch for in a bad safety door switch
- The furnace door switch appears as though it has been eroded
- The HVAC system will not start whether the door is off or on
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