Will cleaning my AC unit lower my DEWA bill?« Back to Previous Page

Absolutely. As a building sciences specialist here in Dubai, I can confirm that yes, a thorough cleaning of your AC system will almost certainly lower your DEWA bill, especially given the symptoms you've described.

The primary issue is heat transfer efficiency. The outdoor unit (condenser coil) is covered in the fine, abrasive dust common in Mirdif. This layer of dirt acts as an insulator, preventing the coil from releasing heat effectively. The compressor then has to work significantly harder and for much longer cycles to achieve the desired indoor temperature, directly consuming more electricity. Similarly, a dirty indoor evaporator coil and clogged air filters restrict airflow, forcing the fan motor to draw more power.

A proper clean addresses both sides. For the outdoor unit, gently cleaning the fins with a low-pressure water spray (after turning off power) can restore heat rejection. Indoors, replacing disposable filters or washing permanent ones is crucial. However, a deep clean of the evaporator coil and blower assembly often requires professional tools to avoid damaging delicate components.

While a basic filter rinse can help, the combination of non-stop running, reduced cooling, and a high bill suggests a significant loss of efficiency. For a system of this size and given the critical nature of AC in our climate, a professional hygienization service is strongly recommended. We use specialized EPA-approved biocides and coil cleaners that not only restore efficiency but also eliminate microbial growth that simple water cannot, improving your indoor air quality as well.

For a definitive assessment and to maximize your energy savings, it's best to have a certified technician inspect the system. You can schedule a comprehensive energy efficiency and hygienization audit with our team by calling 800-MOLDS or emailing hello@saniservice.com.