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Sanyo XHS1872 Furnace Door Switch
A furnace door switch is a switch that prevents the fan and burner from turning on in order to prevent injury and fire. It is extremely important that the device is substituted for a new part as soon as possible if you find it to be faulty.
Some clues of an unhealthy switch on the furnace door
- The switch looks like it is broken badly
- The system will not even begin to start with the door closed
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