Perform blue shield protection plan air conditioner maintenance. Changed filters. Test capacitor and motor amp draw. Test compressor amp draw. Test refrigerant levels they are in range for current temperatures. Evaporator coil is clean. All amp draw and temperature difference in range. Washed condenser. Furnace surge protector is in working order. Suggest surge protector to air conditioner. Surge protector for air conditioner is 136.00 System is cooling at this time.