Slide won't move on our '17 Axis 25.5. It operated fine when I put slide in about 6 weeks ago but now seems dead. Fuse is OK. Parking brake on and ignition off, as per instructions. I see a red LED flashing in the controller but can't figure out what code flashing LED might be indicating. I disconnected a power wire from controller for a few minutes, think maybe it would reset but nothing. Am I doing something wrong?