Really like this forum, and this is my first post.
I'm a new homeowner of a two-family Victorian, and I've been sorting through some electrical issues with our first floor rental unit.
We had some circuits that were not getting power so I checked voltage at the circuit breakers in the designated 100A single phase panel for the first floor. All breakers were on. I noticed that there was either low (20 to 40V) or no voltage at certain breakers. Then I discovered that these "certain" breakers were all connected to the same phase. Breakers connected to the other phase were fine.
I disconnected a wire entering one of these troubled breakers and tested for voltage again. With no load attached, this breaker read 112V. This was consistent over several breakers tested. Again, these breakers are all on the same phase.
I tested different breakers, and swapped out for some new breakers, with the same results: Low voltage under load, more normal voltage without load. I also popped out the breakers, tested them for continuity, and they tested OK.
For a short term solution, I connected all breakers to the stable phase in the box until I can get an electrician over here. When I called my electrician-friend, he mentioned that there could be an issue with the neutral, which freaked me out.
Anyone experience a problem like this? Thanks.
The other (quicker) question is that I'm measuring 109V on one phase and 112V on the other. These voltages seem a little low to me, especially since the first floor is currently vacant with barely any power being used at all. 2nd floor panel reads around 115V and 116V, which seems OK to me. Should I be concerned?