04-13-2015, 05:25 AM
Interesting... I use 2 gen sets also a Ridgid 8000 as a backup and my Miller Bobcat as the primary. I seldom use the Ridgid 8000 it has less than 100 hours and it crapped out on me and gave the same under voltage reading when trying to charge my PV system. I had to order a new idler spring set for it which solved the problem. I ordered a few sets as back up. The Miller has had no issues thus far but uses electronic control for idle and not the spring set. Hope you get it figured out, it's typically something minor that screws them up.