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Goodman ARPF19311 Furnace Door Switch
The furnace door switch is a safety switch which inhibits initial fan and ignitor from starting in order to prevent injury and fire. It is extremely important that the device is changed immediately if you can, if you see that it is broken.
Some warnings the switch on your furnace door should need replacing
- The furnace will not begin even with the door closed
- The safety door switch appears as though it has been messed up
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