Furnace Would Not Light - Fiberglass RV

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Old 09-28-2014, 06:31 PM   #1
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Furnace Would Not Light

I noticed my furnace wasn't burning properly, so I decided to replace the burner. When I re-installed the furnace and tested it, the burner would not light. I turned it off and on for several cycles, and the unit just refused to light. I don't remember why I tried it, but I turned off my battery charger. To my surprise, the furnace worked properly! This reminded me that I've been ignoring a problem with the main battery fuse in the closet next to the door; it has been getting quite warm while passing current. What I found surprised me. Not only had the fuseholder gotten wet and corroded, the crimp connectors attaching it to the trailer wiring simply pulled apart. In any case, I replaced the fuseholder, and the furnace now works properly with the battery charger turned on or off.

-- Dan Meyer

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Old 09-28-2014, 08:20 PM   #2
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Wow, Dan. That's interesting! I get it, but I never would've thought of it.

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Old 09-29-2014, 04:03 PM   #3
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Did you fill the crimp with dielectric Greece B4 you crimped it to the wire. If U did you will prevent corrosion in the crimp.
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Old 09-29-2014, 04:50 PM   #4
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I'm sorry if I was not clear. It was the fuse that was corroded, not the crimp on the butt splice. The splice was simply not crimped properly, so it pulled apart.

The fuse got wet when I had a minor leak in the shower fixture. That has been repaired and water is no longer a problem.

The pictures are of the old and new burners.

-- Dan Meyer
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