Update: On Friday 09/21/18, I ordered a new Progressive Dynamic EMS 50A hardwired and a new Progressive Dynamic PD52 Auto Transfer Switch 50a. Today, both were installed between 10:30a-1:00p. In the next 30-25 minutes, I incurred (2) brief shutdowns of ac power with the first showing no error code and the second showing an error code of PE-7-(Line Frequency High-67Hz)should be 60Hz +- 1-2.
At 2:45p another brief 15-30 second shutdown/reboot of ac power with an error code of PE-5(L-2 High Voltage)
At 5:25p another brief 15-30 second shutdown/reboot with and error message of PE-5(L-2 High Voltage).
Right after the install completion at 1p, the incoming voltage from the park was checked with a "Fluke" brand meter and found to be stable @ 119-120 range. A few minutes later, several temp spikes were noted: 128v 129v 131.5v etc but then settled back to the 19-120 range. This is really starting to tick me off.