Upon arrival found unit running. It stopped after 5 mins without reaching set temp. Found out that drainline was clogged and unit was short cycling every time water backed up. Also noticed that Evap coil is dirty . Recommended customer to clean Evap coil drainline and add a uv light to keep that coil clean for the future. Customer wanted only drainline cleaning for today. Cleaned drainline with chemicals and blew it with nitrogen . Drainline is draining now.