make sure the HYD fluid is full. Then manually level the coach to make level (using your carpenter levels). After it is level to your satisfaction. Turn your keypad off. Then press up arrow 10 times, then down arrow 10 times (rather quickly). Then follow instructions that will show on keypad. This resets the zero point on Lippert (LCI) 4 and 6 point levelers. OOOPS, I forgot to tell you to use wheel chocks before leveling. When the jacks retract-sometimes-the coach moves slightly back and forth. This will cause "popping" noises and a rocking feel. It can also cause jack legs to bend.