How to permanently fix recurring AC leak and mold?« Back to Previous Page

The most effective way to permanently fix a recurring AC leak and mold is to address the root cause, not just the visible symptoms. In Dubai's climate, AC units work year-round, leading to constant condensation. A simple cleaning only removes surface mold, not the moisture source.

Your recurring leak is the primary issue. It’s likely a blocked condensate drain line, a damaged drain pan, or improper installation/insulation of the drain pipe. A certified technician must first diagnose and repair the exact mechanical fault causing the continuous water leakage. Until that leak is sealed, mold will always return.

For the existing mold, cleaning the wall surface is insufficient. Mold on porous materials like drywall or plaster often penetrates deep within. The affected section of the wall behind the wardrobe likely needs to be carefully removed and replaced after the leak is fixed to ensure all hidden mold growth is eradicated.

To prevent recurrence, after the mechanical repair and remediation are complete, consider installing a UV-C light system inside the AC unit's evaporator coil compartment. This technology, when properly specified, can help reduce microbial regrowth on the coil itself, which is a common source of that stale smell. For a case with visible wall infestation and a persistent leak, a professional inspection that includes moisture mapping and air quality testing is strongly advised to verify the full extent of the problem and confirm the success of the remediation.