Performed preventative maintenance for a high efficiency Trane system model #4ttx5048a1000aa , serial #101358nn2f. The evaporator coil’s are clean and in good condition. Tested the drain pan and drain line with several bottles of water to ensure that there are no leaks or clogs. Checked all electrical components needed for air conditioning to ensure that they are secure and in good condition. Replaced the air filter size 16x25x1. The blower motor amp draw is within normal range. The temperature split is at a 20. The condenser coil’s are clean and in good condition. The condenser amp draws are 1.8 for the fan and 11.6 for the compressor. The refrigerant pressures are within normal range for the temperature outside today. The system is operating properly at this time.