Complete 2 heating tune up special inspection in cumming. Find 2 14 year old carrier system. Find both furnace operating with weak capacitor, and dirty blower assembly. Find both Evaporator baldy rusted and upstairs coil leaking charge. Find bout ac unit coil dirty, find upstairs capacitor weak and bout system main electrical switch worn and pitted. Upstairs system low on charge and downstairs system low on charge. Due to system age and conditions, suggest to upgrade equipment. Customer want to wait. Customer declined repair at this time. Both system operating at this time.