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International Comfort Products HHP424GKA1 Furnace Door Switch
A furnace door switch is a safety feature that inhibits the blower and ignitor from starting so as to stop a potential explosion. It is important to get the part swapped out immediately if you can, especially if you suspect it is not working properly.
Important hints your furnace door switch should be replaced
- The safety door switch seems worn down
- The HVAC system will not run whether the door is off or on
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