Recent content by Thumpin

I have not yet taken anything apart - but I did a bit of experimenting to see what happens to trigger the shutdown and over voltage fault. In the 120V mode there is no issue, and I can power 120V appliances without any problem. I can plug in a 1,500/1,800 watt heater, a 500 watt light and a...

A bit of time has elapsed since I was able to do any work on fixing the Fault Module - snow, single digit weather and a few other projects got in the way! A friend who used to work repairing Motorola radios came over and replaced the Thyristor in the damaged Fault Module - the one that had the...

I checked the LOP circuit in the generator without the Fault Module connected....and the switch and wiring is fine. The switch on the engine is "closed" when the engine is not running, and the switch is "open" when the engine is running. The wiring doesn't have any shorts to ground, and it...

2PbFeet: Thanks for the head up on that trace. I looked it over and it appears to be fine in person....the photo I posted makes it appear sketchy. The Fault Module is "stuck" in a "Low Oil Pressure" condition. Now that the burned trace as been repaired...all other modes check fine. The...

Well I did some more work this evening after dinner. I made my first ever attempt at a "Trace Repair" on a circuit board. I started with this: And after watching a few YouTube videos on the repair methods, I was able to get a decent repair for my first try. The circuit tests out good with...

I just wanted to provide an update. I got back home from the holidays and have been working part time on the MEP831A. The new parts for the electronic repairs arrived yesterday. I will work on getting them installed in the next few days. I drained the foul smelling diesel out of the tank...

That is nice to know there are alternate choices to the original MIL spec units - when I looked online for the original units they were $107 each!!!!! So that makes we wonder. Should I keep using the 20 year old original TVS units.....or just go ahead and replace them all with new ones...

LuckyD: The generator/inverter runs well now that the kloppk Governor Control is installed, and it does make power. I ran it for half an hour with a 2K load on it and it purred like a kitten! The only remaining issue was the Fault Module and related Engine Shutdown was non functional.....I...

LuckeyD: Your timing is perfect!!!!! This morning I had some time and I did a few tests of the K12 circuit. I used my Ohm meter and checked the circuit from Pin5 at the Fault Module to the S1 switch that provides power to the K12 circuit. The test showed "0" resistance....which didn't seem...

I have been involved in completing outdoor projects and haven't been able to devote a lot of time on the MEP831A issue - but I have made a little progress. I was able to track down a proper 10 pin connector that makes it far easier to test the Fault Module as instructed in the manual. The...

I just installed the original damaged Fault Module, and did a test to see if it is sending out power through the "Sensor Common" on Pin 3. This is what I believe sends power to the sensors so they can inform the Module their status (closing the monitor switch when there is an issue). I had...

Well I just checked the power to pin 5 in the wiring diagram on on the actual MEP831A. Pin 5 is supposed to have 24 volts - and it is supposed to lose power when the Battle Short switch is engaged (Switch S7). I made a quick attempt to follow the damage along the circuit board to see where it...

Guyfang: Thanks for your quick reply - I spent a couple hours yesterday doing just that. First I compared the connected wires at each switch or control to confirm they are attached where they should be. It all looked like it was properly wired and every terminal had the correct number of...

We had a snow day today and I was able to work on the MEP831A. First I removed the wiring harness for the remote that contained the confusing colored wires. The harness was zip tied to the original harness and it was e4asy to remove. Then I installed the used (and tested good) Fault Module...

I looked at my MEP831A to see if it was an 8 or a 9.....I didn't see anything that gave me that information.....my was built in 2009. What am I looking for to determine if my unit is an 8 or a 9?