Arrived onsite for ac maintenance on 1 system . Asked customer to turn AC on to confirm operation. The contactor stuck a bit but system turned on. Checked all electrical. Chemically Cleaned outside coil, measured pressures for 410a at 104/205psi with 1 degree sub cooling with outside temperature at 65 degrees. Measured temperature drop at 8 degrees. Cleaned condensate line. Performed efficiency test utilizing MeasureQuick. System running but could be cooling better. It could be the outdoor temperature affecting the measurements. Will check system again on a hotter day.
