06:46AM | 03/17/04
Member Since: 03/16/04
2 lifetime posts
I just experienced a melted connection nut on my new furnace where the neutral neutral wire from the circut box connects to the furnace. It requires a 15 amp circuit breaker.

One single seperate circuit wire to the furnace, 14 ga sheathed electrical cable with ground.It did not throw the breaker, just melted and shut down the furnace.

I cleaned it up and reconnected and it is working ok but I am still wondering if it is safe?? Checked wire back to breaker, nothing unusual.

Any suggestions as to why and safety in the future.Chuck


10:30AM | 03/17/04
Member Since: 02/21/04
138 lifetime posts
It sounds like the wirenut was loose and therefore you had some arcing in the connection. Is the lead from the furnace a stranded conductor? A stranded conductor should be stripped longer and wrapped around the solid conductor and then wirenutted. What size/color wirenut was it? What brand?


08:39AM | 04/21/04
Member Since: 03/16/04
2 lifetime posts
You are absolutely correct. Loose wire and arching. Corrected now. Thanks

Chuck Wattson


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