Arrived on site and homeowner explained system has been freezing solid and not cooling. Unit struggles to cool home and is driving up energy bill. Has had unit off for two weeks. Went to condenser to find 1996 nordyne condenser. Unit nearly flat on charge with flattened spots on coils and large section of lower coil eaten away due to corrosion from dog urine. Explained system is very old, exceeded its life expectancy, and is not worth trying to repair this system. Manufacture likely doesn't make a coil this old anymore. Customer has appointment for tomorrow with comfort consultant to go over options for updating equipment. Explained operations of heat pump system and benifits of installing package unit outside home to eliminate furnace inside. All work is complete.