How often should AC coils be professionally cleaned?« Back to Previous Page

A dirty evaporator coil is the most common cause of the symptoms you're describing. In Dubai's climate, with year-round AC use, high dust loads, and humidity, a professional coil cleaning is recommended at least once a year.

For a system struggling as severely as yours, a one-time cleaning may not be sufficient. The extreme strain and high electricity bill suggest a level of fouling that likely requires a professional inspection to assess for potential damage or deeper blockage within the unit. This is a common issue in JVC and similar sandy areas, where fine particulate matter can quickly insulate the coils, preventing heat transfer and forcing the compressor to run constantly.

After a thorough cleaning, focus on maintaining your filters. Check and replace pleated filters every 2-3 months during peak summer; cheaper fiberglass filters may need monthly replacement. This is the single most effective thing you can do to extend the time between professional coil services. A reputable service will provide before-and-after documentation, such as photos of the clean coil and airflow or temperature measurements, to verify the work's effectiveness.