Inverter Repair

On our last trip when we were almost home we tried to turn on the inverter and it was dead. We were dropping it off at the shop for repairs to the body from when we scraped the side on concrete posts at a dump. I just removed it along with lots of other supplies and equipment. I discovered that the fuse on the power cable was blown. When I picked it up the short cord that attached it to the inverter fell apart. No wonder the inverter stopped working.

Blown fuse
Blown fuse

I had a replacement fuse but I was concerned about the quality of my wire builds. I used a vice to crimp them but I read the best crimps are made with a hydraulic wire press. Since I love tools and I will need to check other crimps I decided to buy one. It is an amazing tool. I wish I had known about it when I made the original wires.

Hydraulic wire crimper
Hydraulic wire crimper
Hydraulic wire crimper dies
Hydraulic wire crimper dies

Each set of dies fits a different guage wire. The dies have to be matched to the correct size. I found that the dies also will compact the wires to fit a lug back on after it falls off. The press has a knob that opens the hydraulic piston and the handle is pumped until the lug is firmly clamped. The knob turned the other way releases the piston. The wire was properly crimped and shrink-wrapped.

I reassembled the inverter and installed it and it worked! Then I checked the monitoring equipment that all had to be updated. Thats the problem with electronics they always need attention.

I realized the wifi reporting Cerbo was disconnected. Power to the device was reading 9 volts instead of 12. I didn’t remember where the wire was connected but I followed it to the battery compartment and discovered a broken neutral. That was easily fixed but I used the wrong type of wire (solid not stranded) so I’ll have to replace it eventually.
In the endless procession of RV repairs and maintenance this one was relatively easy.

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