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International Comfort Products PAPC Furnace Door Switch
A furnace door switch is a safety feature that blocks the vent fan and gas ignition from turning on so as to avoid injuries. It is quite important to have it traded for new one quickly if it is causing you problems.
Major clues the safety door switch is failing
- The safety door switch appears as though it has been stuck
- The HVAC system will not even begin to start even with the door closed
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