Originally Posted by twinboat
Have the electrician check the neutral connections in the house panel and meter pan.
With a poor connection on the neutral, something may be starting in your house, drawing on the opposite leg, causing a voltage imbalance.
We had exactly the same issue with our Progressive which repeatedly cut off power because of high voltage. Each time it would reset and restore power.
Since this occurred at our own RV site property, we called the power company and they tightened every connection from our pedestal all the way back to the distribution transformer. The problem never reoccurred.
The power company technician told me "you RVers are the only ones with equioment sensitive enough to react to this sort of thing." His opinion was that the high voltage transient was caused by a combination of poor ground connections in the circuit.