The front control panel goes dark and no buttons work and a loud clicking noise, sounds like it is coming form under the ref. Lights inside work. It will stay like this anywhere from a couple minutes or up to 30 minutes. When it comes back on zeros roll and flash on the control temps numbers for several minutes.

Also, sometimes when you push on the ice dispense to get ice in a glass the control panel goes dark and then kicks back on a few minutes later with the and zeros roll and flash on the control temps numbers