I performed diagnostics and found the unit low on refrigerant and that the system has a leak. the unit has a universal ADP evap coil. The coil possibly leaking, I will have to do a leak search to be 100%. I gave the customer their options. the refill/band aid won't last long. Find and fix leak. Replace ac, furnace is 5years old. Not the original owner. Client wants to replace the ac at this time.