Symptoms
- Didn’t operate
- Plug head had partially melted
- Carbon deposits on the plug blades
History
- Was plugged into an extension cord for a few months, then died.
Things to check
- Power cord
- Fuse
- AC capacitor
Solution
The power cord was supplying power but the protection circuit was compromised, so I replaced it. A $25 replacement power cord is cheap insurance knowing the recipient won’t be burning down their house because of you. The new cord OD was larger than the previous one so I measured the existing cord clamp, modeled it in Fusion 360 widening the clearing a bit and printed it. Worked like a charm.
I noticed the compressor was running, but the fan was not. I measured the start capacitor and it was fine, and in that process I removed the spade terminals then reconnected them. Maybe just a bad connection. Fuses were good, too. Winning by default is still winning in my book!
Gallery
Resources
- https://www.reddit.com/r/AirConditioners/s/wGeZy4JtUK
- Service manual PDF (from https://www.manualslib.com/manual/2519484/Lg-Lp0621wsr.html)