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International Comfort Products H8MPL100J20B1 Furnace Door Switch
The furnace door switch prevents the fan and gas ignition from switching on so as to stop a potential explosion. It is imperative that the switch be substituted for a new part immediately if you can, if it is not working in order to prevent injuries.
Some clues your furnace door switch will soon need to be replaced
- The system does not fire up whether the door is off or on
- The door switch appears as though it has been not there
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