HWH Computerized Leveling System Issue

The system relies on holding pressure on the retract side to keep the jack up. ANY system leak, internal or external, will cause the pressure to drop and the system should start the pump to reapply pressure to the retract side. Air in the oil can cause this. The oil gets frothy if the level in the tank falls too low. Any sign of leaks? There are no switches on the jacks, it just wants to see that pressure on the retract side. I had that problem once while driving but after about 20 or so restarts of the pump it quit. I, too had stopped and got out to look if the jacks were going down...not noticeably, anyway. I'm assuming some little piece of trash was stuck in a valve and eventually got dislodged. Any time my coach sets for a few weeks with the jacks up, the light will come on the moment I start up and the pump will come on to build pressure to be sure the jacks are up. Good luck!