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Carrier KLA Furnace Door Switch
The furnace door switch is a safety switch which inhibits the draft inducer and burner being triggered to start so as to stop a potential explosion. It is quite important to have it replaced swiftly if it is defective.
Subtle hints your furnace door switch needs to be replaced
- The whole system will not operate whether the door is open or closed
- The door switch looks as if it has been damaged
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