That's not a lot of info to go on to help...

- When you say "All other things are on the hand held screen but loco will not respond" do you mean nothing works or it just won't move?
- When you do the load test what actually happens? Are any error messages given?
- Have you doubled checked your connections and isolation?

From the initial information it sounds like the motor is drawing too much current for the LM but I can't say for sure.

- Tim

I've rewired 5 LGB engines to Rail Pro, all were easily done, 3 diesels and 2 Moguls. First I do away with all the LGB electrical components and discard them in my scrap wire box, I remove the electrical pickups in the trucks, or the mogul's engine blocks, plus the electrical sliders, no more track power for me. I totally re-wire the total engine with LED lighting, I use an 8-wire plug from the engine to the tender, thus each idem that is power has its own wiring, just the way I do things. Fishing wires in the diesels is not really a problem as there is not mush to fish, but in the Moguls you will have to fish the wires in the boiler between the plastic boiler cover and the engines weight, this part of the engine does not really come apart once it is glued at the factory. You could reuse the factory wires, but I chose to run my own wires and I like everything uniform and I was replacing the Headlight to LED and I did add engine side marker lamps to the front of the engine.  My engines are pretty highly modified to give them a different look from what LGB did, but you can still tell they are LGB engines. All my new wiring was smaller then the LGB wiring say 22-26 gauge, but the engine power wire was 20 gauge if I remember. I purchased my miniature wiring plug kit from eBay as well as my LEDs. And yes, you will only need two wires from the engine block to power the engine, I know there are three, but can't remember what the third on does, nothing for your Rail Pro. I tried to post pics here, but this forum does not really support easy pic posting of pics, too much BS to post them. 

Oh wow, reading through my experiment again takes me back...

It should work in Mint as Mint is Ubuntu based, but Mint is only 64 bit these days so I can't say for sure it will work. Unfortunately all my Linux machines are ARM based these days so at the moment I can't try the whole thing again to see.

No, this group is not on Discord.

- Tim

I am also interested in a Bowser RS-3. 

A question for those who have converted one and will a LM3s fit in without surgery to weights or removal of the factory board?

The previous post does not mention this.

David

I flagged a new product called RPT back in July: https://rpug.pdc.ca/index.php/topic,1624.0.html. Why it did not click that RPT would stand for repeater back then I don't know.

Still, should be quite helpful and something we've wanted for quite some time.

- Tim