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Nordyne MS3BC024KA Furnace Door Switch
The job of the furnace door switch inhibits the vent fan and burner from starting so as to avoid injuries. Do not try to fix it, just have it traded for new one as soon as possible if it is causing you problems.
Simple signals your safety switch on the furnace door is dying
- The door switch seems to be messed up
- The whole system will not even begin to start even with the door closed
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