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EdgeStar AP12000HS Furnace Door Switch
A furnace door switch is a safety feature that prevents the draft inducer and other risky devices from starting in order to prevent injury and fire. Do not try to fix it, just have it substituted for a new part at once especially if you think it is defective.
What symptoms are present when the switch on the furnace door has a need to be replaced?
- The HVAC system will not even begin to start even with the door closed
- The safety door switch appears to be eroded
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