Ron can't get into the forum and he asked me to post this. ( Ron Is the Man! ) He talked to a CS rep from MES today and she told him that they had found a problem with some of the new MES units. Seems that the controller and the lower unit have been coming from different factories. What she told Ron was to check the wire colors on the connection between the controller and the lower unit to see if the colors match. If they don't.... they have come from two different locations and will/may cause a problem. Mine match up and I'm still having problems. Here is a picture of what you'll be looking at. I'm not sure if the two wire connector is suppose to match up or not. Mine don't. The controller side is red/black and the lower unit side is white/grey. I've got a call into MES and I'll post again tomorrow with info on the two wire connection.