During set up this afternoon the main landing gear would not move to lift the camper off the truck. I first checked the battery power level. Since this is our 3rd set up with a new BC 3450TS I was very puzzled. I called the dealer and told the service manager what was happening. There was no sound when the switch was activated. He went out to a BC that he has on the lot to see where the fuse is located. He called me back within 20 minutes and told me the fuse is located behind the battery under the hydraulic unit. It is a micro 30 amp fuse. It was very difficult to locate. So if you don't have any on hand I suggest getting one.