Once it's cleared and calibrated, wheel will stop. What type of clear chips did you buy? This game, you need to use the removeable clears chips because you have to keep the factory mains in this game. U28 & U43. Leave in clear chips will not work. Replace the 3.6 volt AA battery on the MPU. Once you get the correct clear chips, clear it, keep door open until the reels stop calibrating and then watch the bonus wheel finish it's calibrating. Then prees the service button on the outside of the door. Then you can close the door. PM if you need help.