Completed annual maintenance on a 2013 Bryant air conditioner. All mechanical components of the system checked out at this time. During testing of the unit the technician observed the voltage enhancement system just within manufacture specifications. Technician also recommended surge protector due to recent power outages and power surges in the area. Technician presented options HB7 a-e. Customer stated she will talk it over with her son and get back with the office about setting up an appointment at a later time.