I visited this site this morning and found AC and DC voltages at the inverter terminals to be within expected range (432 Vdc and 246 Vac). Since the error code on the inverter specified it being an AC problem I removed the upper cover of the inverter and traced all the terminal and soldered connections "upward" as far as I could until the current path disappeared somewhere into the inverter's circuitry. My readings were 246 Vac the entire way. I verified continuity on both of the "buss" fuses in the machine and they tested properly. Unless someone has further suggestions troubleshooting this issue I of the opinion the equipment has reached the end of its life. Not bad considering it's been kicking away for 16 years of Montana summers and winters.
Cheers, Sam [image: OnSite Energy] <https://onsiteenergyinc.com/> SAM HARALDSON Installation & Service Manager Office: (406) 551-6135 <+14065516135> 1515 N. Rouse Ave Bozeman, MT 59715 Locally owned and operated since 2012 [image: B Corporation] <https://onsiteenergyinc.com/bcorp> On Thu, Dec 8, 2022 at 2:13 PM Sam Haraldson <s...@onsiteenergyinc.com> wrote: > Howdy Wrenches, > > Any "old timers" here care to chime in with some basic info on what I > might be heading out to see at a 10+ year old ground mount? It's a Xantrex > displaying the message AC Fault 186.6v. I'm prepared to head out there and > troubleshoot blind if no one has anything to offer up but figured why not > post a quick message here in case anyone has insight they wish to share > with me prior to my visit next week. > > Subsequently since this is a ground mount it doesn't need rapid shutdown > so if the inverter has failed I probably have some decent options to > replace it. If you've had good luck with a particular brand to use for > swaps please share that intel as well. I don't know how big the array is > so all I'm looking for is brands and not models. > > >
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