Traulsen Model G20010 R22 System 23 oz
Unit was running at 0# backside pressure. The Cap tube was frozen back six inches from where in enters the evaporator. I figured it might be low on refrigerant. I replaced the existing line drier with one having an access, pulled a vacuum and attempted to recharge to 23 oz. Before reaching the proper weighed in charge my head pressure was above 300# (ambient temp in the kitchen was 95)
Possible the ice is a sign the cap tube is restricted where it enters the evaporator? I have normally found the restriction at the drier.