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International Comfort Products NHP060GKA1 Furnace Door Switch
This switch blocks the vent fan and ignitor being triggered to start so as to stop a potential explosion. You should really have it substituted for a new part as soon as possible if it is damaged so as to prevent something bad happening.
Hints of a declining furnace door switch
- The door switch has been not there
- The whole system does not begin to work with the door closed
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