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SPT WA-1000E Furnace Door Switch
This switch inhibits the draft inducer and burner from switching on so as to stop a potential explosion. Do not try to fix it, just have it swapped out swiftly if it is damaged so as to prevent something bad happening.
Major clues your safety switch on the furnace door is in dire straights
- The furnace will not start with the door closed
- The door switch has been worn
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