Upon arrival customer explained that furnace was leaking water the other day, they shut off furnace and it continued to leak for a while before eventually stopping. Turned AC on and checked refrigerant pressures. Found that system has restriction in piston causing sub-freezing evaporator temps leading to the coil freezing up. System is 22 years old and uses r22. Spoke with customer about high costs to repair systems with r22, recommend replacing the system due to age, condition and estimated costs of repairs. Set up appointment for tomorrow @ 4pm to discuss replacement options with comfort specialist. Furnace is also 22 years old and customer would like to see about replacing it as well. Advised customer to leave system off to prevent water damage. Recommend joining Comfort Advantage Club.