An annual AC tune-up ensures that your system is working efficiently, while also reducing the chances of an unexpected breakdown. Ideally, you will schedule AC services for one regular tune-up a year.

1. Refrigerant Check

Refrigerant circulates through the AC in a closed system, which means the system should only require refilling if a leak occurs. During a tune-up, the technician checks all of the refrigerant lines for signs of leaks. If a leak is suspected, the damaged lines or seals must be replaced and the unit will be recharged with fresh refrigerant. 

2. Filter Changes

Your air conditioner will have at least one filter, with some models featuring two or more filters. Those with in-line air purification systems may also have filters inside the purification intakes. Although you should be changing these filters periodically throughout the cooling season, they will also be replaced during a tune-up. Not only will the tech change out the filters, but they will also fully clean out the filter housing. 

3. Coil and Condenser Cleaning

The outdoor part of your AC unit consists of the evaporator coils and the condenser unit. These are the components most exposed to the elements, including dirt, dust, and debris. During the tune-up, the housing will be removed so the inside of the condenser unit can be thoroughly cleaned out. Any moving parts will be lubricated at this time. The evaporator coils will also be cleaned and the fins that make up the coils will be straightened if they have become bent.

4. Electrical Inspection

No tuneup is complete without making sure all of the electrical system components are in good working order. Wiring will be checked for wear and replaced as needed. The main fuse in the breaker box will also be tested, as will the systems inside the thermostat. The various relay and sensor switches must also be checked, as often it is a failure in one of these that causes an unexpected breakdown during the cooling season. 

5. Wear & Tear Repairs

The final steps in the tuneup are addressing the wear and tear that affects every unit. In some units this may involve replacing a belt, repacking fan bearings, and servicing the blower motor. Finally, the tech will test the AC to make sure it running quietly and cooling properly to the thermostat settings. If problems are discovered, they will provide you with a list of repair options.

Contact an AC service to schedule a tuneiup for your unit today.