Arrived on site to perform heating maintenance on Lennox Split heat pump system. Cleaned filter and set thermostat into heating. Went to unit under home and checked temperature rise and blower amps. Disconnected power and checked blower assembly, evaporator coil, drain pan, drain line, and all electrical connections. Set thermostat into cooling and went to condenser. Checked refrigerant pressures and amp draws for CFM and compressor. Also checked all electrical connections and CFM condition. No issues found during maintenance. All work is complete