Performed ac tune up Rocklin. 1 yr Goodman split system. Filters ok, 20-30-1 and 14-14-1. Checked electrical connections all tight and ok. System needed a bath due to construction dust and dirt. Washed coils to help with Efficiency. Tested all parts ok. Refrigerant ok. New system just need to keep up on filter changes. System looks good. 18 degree temp split.