I have a 2013 bighorn with a six point hydraulic leveling system and hydraulic slides. Last two or three times I have moved the trailer, when I retract the living room and kitchen slides they retract super slow, the trailer lights go dim and a warning message on the fridge flash " low dc power". Once the slides are completely retracted the warning ends. Also the jacks retract super slow. when I try to extend the jacks to unhook from the tow vehicle they extend slow and stop when both jacks take the weight of the trailer, with a noise coming from the solenoid unit which is by the hydraulic pump.( same noise as when a weak battery will not start a vehicle engine) Once when this happened, i retracted the landing jacks fully, tried again and it worked flawlessly. the last time i unhooked the trailer from the tow vehicle, the landing jacks worked very slow, the auto level worked fine until the end of the leveling process but the hydraulic pump wouldn't shut off until I shut the leveling control off. It appears to be intermittent. Has anyone ever encountered similar problems. I have ordered a new solenoid unit as my thinking is that it may be the culprit. Any thoughts?