It sounds like you just need to reset the zero point. In order to do this you will need to follow the steps I have attached for you below and in the photo. If this does not fix your issue then please just let me know and I will see if we have any other actions for you to preform.
1. Manually run the jacks to level the unit. This is best achieved by placing a level in the center of the unit and leveling it both front to back and then side to side.
2. Once the unit is level, turn off the... view full answer...
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