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International Comfort Products NHP248AKA1 Furnace Door Switch
The job of the furnace door switch blocks initial fan and gas ignition from activating in order to prevent injury and fire. It is important to get the part changed quickly if it is defective in some way or another.
Key signs of a deteriorating safety door switch
- The furnace door switch looks like it is broken
- The HVAC system will not operate whether the door is off or on
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