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Lennox HP13-030 Furnace Door Switch
The job of the furnace door switch prevents the blower and ignitor from turning on so as to avoid injuries. It is quite important to have it substituted for a new part as quick as you can if you see that it is broken.
Important red flags to watch for in a failing safety door switch
- The whole system does not turn on whether the door is open or closed
- The door switch appears as though it has been breaking apart
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