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Good luck and be sure to let us know how the repair goes.

Understood. As Kurt said, its a bad diode. If there is any kind of electronics shop around you the part should be readily available. It isn't anything special. Very common. If you can't find it locally an online retailer like Mouser can have one to you in a few days.

Also to add, here is a diagram of the diagnostic port on the generator. If you look at the schematic you'll see little triangles with letters. Those correspond to the diagnostic port pin. I personally find this helpful to trace problems quickly...

CR1 is either in backwards or damaged. Can you take a photo?

Visit the TM section of the forum and download the manuals. There is lots of good info in there. Here are a couple schematics that may help. https://drive.google.com/file/d/0B2ucd1TGFTw_eEJMa21hX3FIRnc/view?usp=share_link&resourcekey=0-ZjPWQDcRXlpipKUwjijT8w...

Welcome David. Glad to see you posting. I hope someone has direct info on what it might be. It certainly looks like a testing mule. If I were guessing I'd say it was for environmental limit testing.

Did you let it run for a while and warm/dry everything out?

I have an 831 that will give an overload fault upon startup if I leave it out in the rain. To resolve the issue I will let it run for 15 or 20 minutes. The heat from the engine will dry out the inverter. I can then cycle the power on the unit and it will run OK. When I have some free time I'm...

I second that. The one I have had never used a drop of oil that I can tell.

Nice job.

The only thing I've been able to get at auction lately that I didn't think I overpaid for was the H140 heater I got a couple weeks ago. All the generators have sold for so close to market value here in the south that its hard to make any profit on them. :(

The 40kw/hr are batteries from a Chevy Volt (3 of them actually) with a Batrium BMS setup. The new batteries are LiFE 5kw/hr rack mount modules.

I have about 40 kw/hr of battery now. I have another 30 kw/hr of battery on standby to add to the system. Its 48v. When I build the house the plan is to have 100 to 120 kw/hr of battery power. The inverters are a pair of Schneider 6848s. One of the cheap inverter/chargers will fully load a...

Have you checked the exhaust temps for an imbalance between the cylinders?

How much battery capacity will you have? My Schneider inverters have battery chargers built in but I'm considering not using them when I build my final config. Reason why is the inverter will pass through the generator power to loads and use any excess to charge batteries. They use the same...

That is good info. First, MEPs don't last 30k/hrs. Like any machine they do break and they do wear out. The engine in a MEP802 has long life potential, but not knowing how it will be treated or the initial condition of the set, I'd guess that 10khrs is what you should expect to get. Could you...

Quick question, What is the motivation for changing to a diesel generator? What is your current experience with the EU3000? Is it not getting the job done?

Don't rule out a flaky connection somewhere. Could be a loose terminal on the back of the alternator. Assume nothing.

It happens. :D And thats how you spend $4k on a paperweight.

It wasn't an 803. It was an 813.