[rohrmann]

You might also check the auto-reset breaker that feeds the hydraulic pump. The cheap breakers tend to fail, and we had issues with ours connected to the system. On the newer rigs, the cable to the pump from the batteries is #4 strand copper and the remedy is replacing the 40 or 50 amp breaker with an 80 amp breaker. If you have already brought in a couple of slides, then there will be additional fluid in the reservoir. This photo is where the breakers are at on our rig, near the bottom of the photo, and the left one with the cable curving up to the pump motor is the one to check. They are covered with the red protectors. The second photo is what the breaker looks like.