if it's an original 9855 from the beginning of 2005 and has never been refurbished, you may see some problems like this. the motors they used for the face would act up and sometimes quit completely. i've got a refurbed 9855 with no problems and i'm on my second 9853 in my truck. the first was replaced under warranty, within the first 30 days i owned it because of the motor. i believe pacparts.com would have a new motor for it. if you're good with electronics, you should be able to change it out. otherwise, i'd give alpine a call and see if there's anything they could do for you. when i called them, they said they were having a lot of problems with the motorized faces and that they were under warranty for that year.