Yes, same problem, bad seal, motor full of oil, burned up motor, and of course it happened with the jacks down. Fortunately was able to download the emergency instructions from the Lippert site, and a fellow chapter member had a big drill and with the sockets and extensions I was carrying we were able to retract the jacks and
head home.
Lucky for me, the jacks had less than a year of service and we did get help from Lippert.