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Goodman GCV90905DXA-P1257805F Furnace Door Switch
The furnace door switch is a safety switch which prevents initial fan and other risky devices from switching on so as to avoid injuries. You should really have it changed at once especially if you suspect it is not working properly.
Major indications your furnace door switch is in dire straights
- The switch is worn
- The furnace does not operate whether the door is open or closed
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