[sigo'suite]

I have the upgrade and recently my jacks were struggling to raise the coach. It would raise about an inch or so and then stop, I would release the switch hit it again and it would do the same.

I called dealer service and was told that probably my voltage was low. The hydraulics will not have enough umphh if the voltage is below about 10.8 amps. I got off the phone and checked my batteries. (dual 6 volt) and sure enough they were way low on water and I filled them. Week later when I went out again, they had recharged fortunately; and they worked fine.

Just a thought, it may be worth checking.