Came out to call to perform preventative maintenance on heat pump system. Discussed with customer about maintenance being provided today, filters, and any issues he may be having. Customer stated he replaced the filters a month ago, and that the system did just fine throughout the summer. I inspected the filters, blower assembly, motor, capacitor, evaporator coil, and. Checked operation of electrical elements and wiring of the air handler. Replaced pan treatment for customer and made sure drain line was cleared. Inspected the condenser coil, compressor, fan motor, contactor, capacitor and wiring of heat pump. Found capacitor reading out of range and recommended replacement. Customer approved, so I replaced the capacitor. Cycled system in cooling mode to checked temperatures and pressures. Checked operation of heat pump as well. Customer is aware the system is older and the parts are slowly wearing down on it. Wants to keep it running as long as possible. Let customer know that as of ri