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International Comfort Products PAK036K000A Furnace Door Switch
The furnace door switch inhibits initial fan and other risky devices from turning on so as to avoid injuries. It is extremely important that the device is swapped out promptly if you suspect that it is not working.
Key signs of a weak switch on the furnace door
- The safety door switch appears as though it has been broken completely
- The system will not fire up whether the door is open or closed
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