for this job, I did an evaluation. When I arrived, the unit units were both running indoor and out. Took a Delta it was nearly 0. At the outdoor capacitor was fine and Compressor was running. Refrigerant levels were low. System has a piston and with superheat of 60+. did a leak search and found a leak in the coil. Adding refrigerant to system to keep homeowner comfortable until coil is ordered and replaced.