Cooling tune up performed today on a Trane inverter heat pump installed in 2021. All electrical connections are tight with no corrosion. ECM blower motor is acceptable. Blower wheel and evaporator coil are clean. No drain protection has been installed drains are clear. Compressor and condenser fan motor are acceptable refrigerant levels are in range. Outdoor unit was washed and waxed. Customer has two 200 amp panels that service the home. One panel has surge protection but the other does not. Both panels need to have surge protection in order for the home to be protected. Need to add a surge protector and a drain switch to adhere to code compliance.