I am new to kegging. I have a cream ale and stout on tap. I have a chest freezer converted to a keggerator. I use a Johnson A419 temp controller and keep set at 39 degrees. Initially everything was working great. Now if I let it sit for a few days I get almost no flow out of the taps when I open them. At first I noticed some icing in the lines as they were touching the sides of the freezer. Thawed them out and worked fine again. I tied off the lines so they weren't touching the sides of the freezer and haven't noticed any more icing. However, after about a week I opened the taps and again I have absolutely no flow. There does not appear to be any obstruction in the beer line itself. Maybe icing at the out connector but if it's at 39 degreeswith a 2 degree differential I can't see any reason for icing. With that said, this is the third time this has happened and when I shut off the freezer and let it warm up a few degrees the problem has resolved the last 2 times which would suggest an icing issue I would think. Anyone have any ideas or suggestions to help me out? This is getting frustrating!