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International Comfort Products H8MPV050B12A1 Furnace Door Switch
The job of the furnace door switch blocks the vent fan and ignitor from switching on in order to prevent injury and fire. You must have the device swapped out as soon as you can if it is damaged so as to prevent something bad happening.
What to see if the furnace door switch is not working right?
- The whole system does not operate whether the door is open or closed
- The furnace door switch seems eroded
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