Power Quality - 33x Voltage dips in the last month

[Dcdyer]

Review these two forums on A/C compressors.

Sense for AC diagnostics?

This is really mostly a call for help from folks who understand HVAC. We have had a couple days of unseasonably hot weather so my 2 AC units have been madly running. Initially they weren’t helping much so I had the AC guy out and he put 2-3 pounds of refrigerant into both of them (20 year old single stage units). Now they are cooling again, but the larger compressor occasionally pops the 20 yo circuit breaker in my main panel. It has happened 3-4 times so far, so a I have been using Sense to try…

https://community.sense.com/t/graphs-of-utility-voltage-for-detecting-issues/3698/43?u=dcdyer

I think your problem could be with your “Run/Start” capacitor. Take some screen shots of your starting wattage load when the A/C compressor starts up and post them on the forum. I had to add a “Hard Start kit” (another capacitor) to my A/C unit to fix the same problem you are having.