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International Comfort Products HHP448GKA1 Furnace Door Switch
A furnace door switch is a safety feature that stops the blower and ignition sequence being triggered to start in order to prevent injury and fire. It is important to get the part traded for new one immediately if you can, if you suspect that it is not working.
Subtle cues of an unhealthy furnace door switch
- The door switch is worn
- The HVAC system does not run even when you close the door
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