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

The black spots you've described are almost certainly mold growth, a direct result of the AC condensate leak creating a persistently damp, dark, and organic-rich environment (from dust and fibers on the wall). In Dubai's high humidity climate, where AC systems run continuously, this is a common yet serious issue.

The most effective solution is a two-part process: remediation of the existing mold and permanent repair of the leak source. For cleaning, simply wiping the visible growth is insufficient and can aerosolize spores. The affected wall must be treated with an EPA-approved fungicidal disinfectant. However, this is only a temporary fix if the moisture source isn't eliminated.

The permanent fix requires a professional HVAC technician to diagnose and repair the AC leak. Common causes in the UAE include a clogged condensate drain line due to dust and microbial growth (a bi-yearly cleaning is crucial), a damaged or disconnected drain pan, or a malfunctioning condensate pump. The closet location suggests the drain pan is the likely culprit, possibly cracked or overflowing.

Given the proximity to your clothing and living space, I strongly recommend a professional inspection. Our certified team at Saniservice can conduct a comprehensive assessment to identify all hidden moisture and mold, safely perform the remediation to Dubai Municipality standards, and coordinate with HVAC specialists for the permanent mechanical fix. This integrated approach is the only way to ensure the problem is resolved for good.

For immediate assistance, please call us at 800-MOLDS (800-66537) or email hello@saniservice.com.