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International Comfort Products CHP236AKA1 Furnace Door Switch
This switch inhibits initial fan and other risky devices from activating so as to stop a potential explosion. You should really have it swapped out at once especially if you suspect it is not working properly.
Major clues the safety door switch needs replacing ASAP
- The door switch seems to be wrong
- The whole system does not turn on whether the door is off or on
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