Upon arrival system satisfied at 70 degrees. Turned both thermostats on and checked refrigerant levels on system and found system to be overcharged with refrigerant. Reclaimed about a 1lb of refrigerant from system. Replaced 1-16x20x1 filter and checked operation and system is performing properly. Advised tenant that when it gets below 30 degrees, the heat pump system will have a hard time heating especially at 9 degrees.