Performed diagnostic on 19yr old carrier unit, upon arrival customer stated unit stopped cooling Saturday, checked tstat, cycled to ac mode, furnace started up, inspected filter, airflow, customer stated airflow in master bedroom is not good, explained we would have to tear into her ceiling to gain access and she would be responsible for having ceiling repaired, upon going outside to ac unit, found not running, no 240v, went back inside to find ac breaker tripped, reset breaker and it tripped instantly, checked compressor, found failed, compressor already had an hard start on it, spoke with customer about r22, explained r22 is obsolete as of 1/1/2020, highly recommend install supervisor due to age and conditions of system, customer approved, customer will call in to schedule install supervisor, unit not working at time