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International Comfort Products CAC224AKA1 Furnace Door Switch
The furnace door switch is a safety switch which blocks initial fan and ignitor from starting so as to avoid injuries. You must have the device changed ASAP if you see that it is broken.
General indicators that your furnace door switch will not last the year
- The furnace does not turn on whether the door is open or closed
- The door mechanism has been messed up
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