UTS10BI continuous recycles

[RDMoran]

My problem is perhaps best described by viewing the attached video.

https://youtu.be/fdhIWWQoHrQ

There've been a couple of posts describing a problem similar to mine, to which the responses suggest a misconnection of the neutral wire or other wiring errors. It would be helpful if someone could elaborate in some detail on the neutral wire connection issue that my electrician should attend to   -  or any other wiring issue that would create the symptom seen in the video. It might also help to note that this symptom occurred following the restoration of my National Grid utility service after a 3 hour outage (for 2nd time. in a week). Since circuits #9 and#10. provide 240V via my 240V well pump, my electrician thought the cycling of the pump circuit was likely not doing the pump any good, so he disconnected the UTS10BI leaving me without emergency generator protection.

Any suggestions are welcome and appreciated.

Robert Moran