[RickandJanice]

You could try cycling the slides in and out in a few time in the recommended order. If an air bubble has formed, this will chase it back to the pump reservoir and possibly solve the problem. If this does not work and you see no fluid leaks anywhere, then the seals on the rams are probably about worn out. We had this problem just before our seals gave out last summer and the jacks started dropping when traveling down the road. Had to replace the rams inside the jacks.