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International Comfort Products H8MPL100J20A1 Furnace Door Switch
A furnace door switch is a safety feature that inhibits the fan and burner from starting in order to prevent injury and fire. It is imperative that the switch be substituted for a new part ASAP if you find it to be faulty.
Major warnings of a weak safety furnace door switch
- The system will not operate with the door closed
- The safety door switch looks like it is broken completely
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