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International Comfort Products H8DNL100L20A1 Furnace Door Switch
The job of the furnace door switch stops the draft inducer and ignitor being triggered to start in order to prevent injury and fire. You should have the switch be switched out quickly if it is defective in some way or another.
Simple signals the switch on your furnace door is going out
- The HVAC system cannot run whether the door is open or closed
- The safety door switch appears to be chipped
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