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After fighting through some of the issues I have experienced with these units, my biggest fear is parts availability with primarily the inverter. They are complex but an intermittent glitch has caused me to go through the whole wiring harness. The relationship between the the interposing relays...

Fine time for the popcorn emoji to be taken away...

That is exactly what one of my tests looked like when I let the magic smoke out. Have been thinking that I need to clarify. The MEP-831A is a brilliant piece of engineering and fit a very nice niche in the military gen sets. The are and have been on frontline protecting us and the warriors in...

I have same affliction. Glutton for punishment, bordering on sadistic sometimes I think. If you enjoy troubleshooting then these units are for you. At least in my experience. I have no doubt I will test this hypothesis again and again, in the future, as soon as the next candidate comes across...

You are most correct. I would be very interested in that data. We do similar in my industry RCA (root cause analysis). People accuse me of over analysis all the time. I just say yeah, so what. Lol Pretty simple concept, if you know what to expect from a piece of equipment, you might might be...

The way I interpreted it is that the 802-805's are a more reliable unit. The smaller and more complex units such as the 831's and 531's had mechanical and electrical failures. Nothing to do with fuel other than them testing these units side by side was for testing a blend. It is merely a data...

http://www.steelsoldiers.com/showthread.php?137698-Generator-set-durability-testing Interesting read and attached conclusion

PMA failure. Don't remember that thread, but I have read so much on this site. Lol. Do you mind sending link or elaborating? Thank you for your response. I read some early threads from a guy that worked for Fermont, is he still on site?

I will take responsibility for at least part of the damage on inverter. I was load testing and may have gotten carried away in testing its capabilities. Load was under rating of gen, so it should have survived me. OverkillTASF has a thread talking about inverter issues so hopefully he will...

The capacitors have a dielectric compound in them that degrades over time and will start by losing efficiency then can fail. These units have a shelf life and I'm just trying to figure out what that is. Its not a liquid more like a fibrous compound in the ones that I cut apart on my failed unit...

This a thread that has been going a long time, so would like to hear opinions on these 831's now that the inverters are getting some age on them. I have had one that its inverter failed. Capacitors dry out and fail after a period time. Contacted OEM and they indicated that my units inverter had...