HookupAndGo
RVF Newbee
- Joined
- Oct 20, 2022
- Messages
- 1
- RV Year
- 2003
- RV Make
- Newmar
- RV Model
- DutchStar 4006
- RV Length
- 41
So last month we had pretty much the exact same issue -- only difference was we were on a 30A site.
Essentially, the voltage was very low during the day when everyone had their' AC's running hard -- it would drop as low as 108. At night or first thing in the morning it was 122 or so.
I too have a Progressive Surge Guard so used to just look out the bathroom window so I could read the voltage at the pedestal (I also had a unit inside -- but also used the Progressive unit so I could monitor my Amp usage).
After a week of being very concerned about the voltage I ordered a 50A Autoformer -- had to pull that trigger and spend the money. Finally, nice steady power coming into the RV.
Then, after about a week of watching it, and seeing it boost, one morning we woke up and the AC control indicated no power (the inverter took over for everything else). So i looked out the window and sure enough, the Progressive Unit had tripped -- Over Voltage, and it was still high (i think 134).
I tried resetting at the breaker, everything. Finally got my meter out and measured... 122. Hmm, So the Autoformer essentially was "latched" in full boost mode. I did some reading on the internet and found others with this latching problem. So, I disconnected the Autoformer and applied the old "calibration" method -- "the 1" drop" (others used a rubber mallet). Bingo. It "un-latched" and was back to normal mode.
Things were great for another 5 days and it happened again. Repeated the attitude adjustment and all good again.
So, it is sounding like your Autoformer is latching like mine did -- only difference is you are 50a and I was only on 30. I think what is happening is the voltage goes up at night/early morning since it is cool and power usage is down. Then your autoformer latches and you are pretty much done until you get it reset.
Essentially, the voltage was very low during the day when everyone had their' AC's running hard -- it would drop as low as 108. At night or first thing in the morning it was 122 or so.
I too have a Progressive Surge Guard so used to just look out the bathroom window so I could read the voltage at the pedestal (I also had a unit inside -- but also used the Progressive unit so I could monitor my Amp usage).
After a week of being very concerned about the voltage I ordered a 50A Autoformer -- had to pull that trigger and spend the money. Finally, nice steady power coming into the RV.
Then, after about a week of watching it, and seeing it boost, one morning we woke up and the AC control indicated no power (the inverter took over for everything else). So i looked out the window and sure enough, the Progressive Unit had tripped -- Over Voltage, and it was still high (i think 134).
I tried resetting at the breaker, everything. Finally got my meter out and measured... 122. Hmm, So the Autoformer essentially was "latched" in full boost mode. I did some reading on the internet and found others with this latching problem. So, I disconnected the Autoformer and applied the old "calibration" method -- "the 1" drop" (others used a rubber mallet). Bingo. It "un-latched" and was back to normal mode.
Things were great for another 5 days and it happened again. Repeated the attitude adjustment and all good again.
So, it is sounding like your Autoformer is latching like mine did -- only difference is you are 50a and I was only on 30. I think what is happening is the voltage goes up at night/early morning since it is cool and power usage is down. Then your autoformer latches and you are pretty much done until you get it reset.
