Getting your air-conditioner serviced from time to time not only ensures better performance but also helps save on energy. Further, it also extends the life-span of an AC and prevents early wear and tear of the internal machinery. Whether you have a separate AC unit or as a part of the HVAC system, here are a few important points that you should know about maintenance of an AC.

Clean the filters

Clogged and dirty filters block the flow of air and reduce the AC’s efficiency to a great extent. The obstruction caused in the passage of air may push dirt directly into the evaporation coil. This may damage the heat-absorbing capacity of the filter. Replacing a grimy filter may lower the energy-consumption of an AC by 5%-15%.

In central air-conditioners, filters are positioned somewhere along the length of return-duct. Walls, ceilings, furnaces or the air-conditioner are some of the common location for filters. These days, most ACs are available with reusable filters. You just have to remove them, wash these under a pressurised water-pipe or tap and fix them again. Generally, filters should be washed once every fortnight. Keep a check on the automatic lights on your AC which indicate that it is time to clean the filters.

Make coils dirt-free

As explained on, “dirt and debris accumulating on an air conditioner or heat pump coil block airflow across the coil, increasing the cost of heating or cooling the building. In severe cases cooling or condensing coils can become so blocked that air flow is seriously reduced, possibly also leading to an evaporator or cooling coil icing problem indoors or an overheated, damaged compressor outdoors, or simply loss of cooling capacity of the system.

In addition, a blocked evaporator coil can cause the AC compressor to run at higher than normal temperatures – a condition that over time can break down lubricants circulating inside the system, thus shortening the life of the compressor motor itself.”

Use Fin-combs

The fins on both the coils are made using aluminum, which makes these easily bendable. This may lead to blockage in air flowing through the coil. Use a tool called fin-comb which helps these fins return to their original position.

Check drain pipes

Check drain pipes from time to time. Gunk deposited in the drain pipe prevents the AC from absorbing excess moisture. Sometimes, clogged drain pipes may lead to reverse water flow which may lead to staining of walls.

Hire a professional

Apart from these tips, hire a good ac repair service professional in Gilbert or whichever state you live in. A well-trained technician will find and fix more technical problems in your air conditioning system. lists the tasks that a professional service provider does for ac maintenance:

  1. Check for correct amount of refrigerant
  2. Test for refrigerant leaks using a leak detector
  3. Capture any refrigerant that must be evacuated from the system, instead of illegally releasing it to the atmosphere
  4. Check for and seal duct leakage in central systems
  5. Measure airflow through the evaporator coil
  6. Verify the correct electric control sequence and make sure that the heating system and cooling system cannot operate simultaneously
  7. Inspect electric terminals, clean and tighten connections, and apply a non-conductive coating if necessary
  8. Oil motors and check belts for tightness and wear
  9. Check the accuracy of the thermostat.

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