Dust and dirt are core enemies of your air conditioning or AC system as they cause overheating of the system. During AC service, the technician cleans the dust and debris from the condenser coil and evaporator coil and other key components of the system. In a split AC, the condenser coils are in the outdoor unit.Click to see full answer. In respect to this, what does AC service include?An air conditioning maintenance inspection should include checking the motor, blower, drain line, coils, operating pressures and temperatures, the return and supply lines, refrigerant levels, and connections.Also Know, what happens during AC service? An air conditioning service technician will check to identify leakage from tubes or pipes inside the unit. While doing this, he/she will drain, remove dirt and debris and clean the AC unit to enhance its performance. An Air condition collects a huge amount of dust and debris when it operates. Similarly, it is asked, how much does it cost to service an AC unit? AC Unit Service Costs Regular AC maintenance servicing costs $75 to $200 for simple tune ups. Extended service contracts run $150 to $500 but include the entire HVAC system, both heating and cooling. For repairs outside a standard service, expect to pay $50 to $150 per hour for an HVAC technician.How do I service my AC unit? Table of Contents Introduction. Step 1: Shut Off The Power. Step 2: Remove Debris. Step 3: Clean The Fins. Step 4: Straighten The Fins. Step 5: Clean Area Around The Unit. Step 6: Level the Unit. Step 7: Clean the Evaporator Coil.