Today I completed a comprehensive air conditioning maintenance service to ensure optimal system performance. During the AC tune-up, I cleaned the condenser and evaporator coils, checked refrigerant levels, and tested the system's pressure. I also cleaned the drain line to prevent water damage and replaced the air filter. The air conditioning maintenance included inspecting electrical connections, lubricating moving parts, and calibrating the thermostat. I noticed the capacitor was showing early signs of wear, so I recommended scheduling a replacement within the next few months to prevent unexpected breakdowns.