Hi guys, I had an old PS1 diesel set years ago that I also had problems with so I sold it.
Now I got another one 20-2169-1 Rock Island E8 set. Having some quirky results with it.
Specifically, it will run fine for awhile, then stop and you hear 2 dings. Pressing the direction button and it will resume for awhile.
I checked the new battery according to POand it's at 9.1 volts. Substituted an alkaline one and same thing happens. Did a factory reset, 18 from the RK z-controller that I'm using, seemed to run fine for a lot longer, then started it's problem again.
Any help is appreciated, thanks