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 and watch for when the breaker pops somI can reset it and so I might get some insight into why.
Here’s the AC compressor breaker - It’s the ganged 50 in slots 2 and 4.
Here is the breaker tripping around 3:40 AM. Note that the other AC compressor keeps going (slightly smaller and slightly lower power consumption 4000W vs. 5000W)
Here is me resetting the breaker this morning. It went for a bit, then tripped again. I reset it once more and it’s been running nicely.
Any thoughts or opinions on why my breaker is tripping ? The HVAC guy is coming out this aft. He thinks replacing the breaker should fix things.