Super tune up performed today on a straight electric system installed in 2019. System was slightly low on charge. Recharged system with 15oz of r410a. Performed leak search but was not able to locate a leak. All electrical connections are tight with no corrosion. Compressor saver was installed in this visit. X-13 blower motor is acceptable. Blower wheel and evaporator coil are clean. Heat strips are pulling proper amperage. Air filter was changed. System running and cooling upon departure. Highly suggest adding a whole home surge protector in the near future.