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International Comfort Products H8MPN150J20A1 Furnace Door Switch
A furnace door switch is a switch that blocks the vent fan and other risky devices from switching on in order to prevent injury and fire. You must have the device substituted for a new part swiftly especially if you think it is defective.
Red flags the safety door switch is going out
- The furnace does not fire up whether the door is off or on
- The switch looks like it is breaking off
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