Preformed winter tune up on Trane package unit, system seems to be in good running order. Last visit we were here for a service call because the blower was not working due to a loose connection. I suggested again that we put a surge protector on unit to protect homeowners investment as well as adding a in rush device to lower starting amps and keep a healthy compressor for years to come. I went over the different maintenance plans with him as well, he asked if we can send him paper copies to look over and then make a decision. Unit is running at departure.