Performed single system heating maintenance. The system is a straight electric fur-down split system. I checked amps, filter, electrical, and safeties. The system is heating to manufacture specifications. Recommendations 1. I noticed the power slightly flickering in the bathroom where the unit is located. I am concerned that a brown out may damage the components/electrical of the inside and outside unit. I recommend that we install some surge protection to try and protect the major components and other electrical. 2. The outdoor capacitor is beginning to read low 41/45. Since it may be a while before we return. I recommend that the concern be addressed during the heating visit to be proactive.