Anybody know what this Op mode is. It's a duplex 2 stop holeless. Intermittently at the top terminal landing it takes itself out of the group and returns to the 1st. landing. Then goes right back in service. No faults logged. Not even NAV when it happens! On board LCD just says 2STP! Thanks in advance for the help

Stall Protection

Thanks!!

Stall protection was the first thing that came to mind. I was actually in the car a few times when it happened. Sure doesn't seem like it's having any leveling issues.

However I did find the low oil sw and the pressure sw jumpers off the IO board. Also found the pressure sw turned off in software.

The other car has the low oil sw jumper installed and the. Pressure sw turned on.

I set this car up the same way so time will tell.

Tape reader and magnets look good.