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Samsung AM18A1C09 Furnace Door Switch
A furnace door switch is a switch that inhibits the draft inducer and gas ignition from activating so as to stop a potential explosion. It is extremely important that the device is switched out promptly if it is not working in order to prevent injuries.
Some warnings of a weakening safety furnace door switch
- The switch seems breaking apart
- The HVAC system cannot run whether the door is open or closed
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