Performed the AC check. I found indications of leaks at the indoor coil and outside by the unit. Contactor was worn and tested out of its zone. Customer said the indoor coil froze up last year. The leaking R22 is most likely the cause. The unit is currently 17 years old. Average life of system is 12-14 years. Due to age, condition, and cost to repair, second opinion is recommended. We will call to schedule.