Performed preventative maintenance Located air handler in laundry room Inspected and tightened electrical. Cleared drain pan and line. Inspected evaporator coil. Inspected blower wheel. Inspected uv light (found element fails from power surge when board failed) replaced faulty part. Calibrated and tested thermostat. Gained access to install mode. Cycled heating. Took amperage of indoor motor and heat strip. Cycled cooling. Tested float safety. Took temperature difference. Located condenser onside of house Inspected and tightened electrical. Inspected surge protection. Cleared debris from condenser housing. Rinsed condenser coil. Inspected inverter board. Checked refrigerant levels. Took amperage of outdoor fan and compressor. System operating to factory standard.