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The MSDS for Evans waterless coolant says it's mostly ethylene glycol, so it doesn't seem very different from buying full strength ordinary antifreeze and just not adding water.

One pot adjusts the set voltage and the other adjusts the transient response, which is not quite a droop adjustment. It's supposed to be set to minimize fluctuations when a load is suddenly changed, but doesn't have an effect on the steady state droop. It's actually a derivative feedback...

Any chance the injector pump is timed incorrectly?

I checked your profile to see what climate you're in, but can't tell. What's the temperature outdoors when it shuts off? As mentioned above, it's hard to imagine it's really overheating. On a hot summer day here in NC, when it's running the house, my 003A's shutters open maybe 1/3 of the way.

I wrote a procedure for changing to generator power and back to commercial power a few years ago, and my wife and kids practiced it. It was still a little amazing the first time I came home from being out for a couple hours and heard the 003A running. My wife had correctly followed the...

That's a lot of rust and corrosion in there. I'm not surprised that the diodes may not have been making good contact.

Guy, I guess you mean I've admitted to being a problem for small retailers. Yes, clearly I admit that. In my small town, a group 24 battery from Walmart or Auto Zone, or Advance Auto (national retail chain stores) is around $100. The same battery from a local car parts retailer would be $150...

What do you mean when you say "Reading a 5 volt draw with a Fluke and no amps"? What were you measuring that read 5 volts on the meter? I bought two Walmart group 24 batteries for my 003a six years ago, and they still crank the engine like they're new. In my experience, all brands of...

No, once you have the end cover off, you should be able to find all six of the diodes without further disassembly.

The six rotating diodes are all in the same area. Look harder. :)

Sounds like the ones you tested are good, but there are three of each. Even if they all test good, it's still possible there was corrosion at their mounts, and cleaning everything before assembly could fix things.

Please see my edited post that's no longer what you quoted.

Edit: Upon further reading, my post may or may not have applied, and I didn't want to confuse the issue even more. Ranger Danger should post the manual for his RV where it explains the electrical system, and maybe confusion can be cleared up.

Q3 doesn't have much heat sinking on the board, so I don't doubt that it could overheat if it were asked to supply a lot of current, but: The regulator does not supply current to the exciter field, it only sends a small current, less than 400 milliamps, though the control winding of CVT1. When...

Oops... double post.

OK, that implies that the generator itself has something wrong. Things like the rotating diodes come to mind.

OK, so the regulator is not making excessive output, which would stop exciter current output from CVT1. Did you try the "start" position when the generator was running to see if the flashing current gets the generator producing output?

I work at home and can't earn money without power to run things like the lights, soldering iron, and test equipment. My wife also works at home and her business requires a working computer.

There are outages all over the area. We're not predicted to get it back on until 6 PM. The 003A is running happily. How many other have lost power so far?

You can read discharge current by disconnecting either the ground or the positive battery lead, but you need to use caution, because a meter set to read milliamps will blow a fuse if you accidentally draw a high current. Walmart batteries are not necessarily low quality. The two in my...