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Carrier 58MVP100 Furnace Door Switch
This switch prevents the vent fan and burner from activating so as to stop a potential explosion. Do not waste time and have it traded for new one as soon as you can if it is not working in order to prevent injuries.
General indicators that your furnace door switch needs a replacement ASAP
- The safety door switch looks like it is bent
- The whole system does not fire up with the door closed
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