FOUND SYSTEM LOW ON CHARGE DUE TO LEAKING EVAP COIL AND ACCUMULATOR. DUE TO THE AGE AND CONDITIONS OF SYSTEM, I STRONGLY RECOMMEND REPLACING. ADDED 2 LBS OF 407 UPON CUSTOMERS REQUEST UNTIL SHE SPEAKS WITH HER CHILDREN ABOUT REPLACING SYSTEM. CUSTOMER SAID SHE WAS NOT TOLD ABOUT THE $99 SERVICE CHARGE.