Super tune up performed today on a carrier heat pump with air handler installed in 2020. All electrical connections are tight with no corrosion. Heat strips are pulling proper amperage. X13 blower motor is acceptable. Blower wheel and evaporator coil are clean. Compressor and condenser fan motor are acceptable. Refrigerant levels are in range. Outdoor unit was washed and waxed. Highly suggest adding a compressor saver to the outdoor unit to help with the efficiency and reliability of the system upon start up.