Was fixing a bad wiring job between a sub panel and a 240v 2 phase water pump and noticed that my multimedia was only testing it as 190v. Checked back at the breaker and saw the same. Checked between L1 and L2 on a different breaker and saw the same.
My 240v equipment (dryer, oven, water heater, 2 HVAC units) all work fine.
Should I be concerned?
How big of a deal is this? Like call an electrician asap or wait until I have some other electrical work lined up?
Most 240V appliances work fine down to around 200V since they’ll often be used with nominal 208Y120 power after voltage drop.
Are you sure you have 240/120V split phase service and not 2 legs of 208Y120?
If so, I’d contact an electrician or the utility company - sounds like the problem is upstream
I’m going to get a new multimeter first. I also have Tesla battery so I should retest with that system shutdown now that I think about.
Yes, def split phase.