How to stop and clean AC leak black mold permanently?« Back to Previous Page

Based on your description, that's a classic case of AC-induced mold growth, extremely common here in Dubai due to the high ambient humidity. The black speckles are almost certainly mold, and the AC leak is providing the constant moisture it needs to thrive.

First, safety: Do not attempt to clean this without proper PPE. You need at least an N95 mask, goggles, and gloves. Mold spores become airborne during cleaning and can cause significant respiratory issues.

For a temporary clean on a small area, a solution of distilled white vinegar or a specialized EPA-approved mold cleaner is more effective than bleach, which only removes the surface color. Scrub the affected wall area gently. However, this is merely a superficial fix.

The critical step you cannot DIY is addressing the source: the AC leak. In JVC's high-rise buildings, this is a job for a certified HVAC technician. The drain line is likely clogged with microbial growth (a slimy substance) or the drain pan is cracked/overflowing. They will need to vacuum the drain line, flush it with a algaecide, and ensure the condensate is properly draining. Without fixing this, the mold will return relentlessly, no matter how many times you clean the wall.

Furthermore, the mold might have already spread inside the AC unit itself and through the ductwork, contaminating the air you breathe while you sleep. A professional inspection with moisture meters and thermal imaging is crucial to assess the full extent behind the walls.

For a permanent solution and to ensure your indoor air quality is safe, this requires professional remediation. We strongly recommend you stop the DIY approach and get a proper assessment.

Call our certified team at 800-MOLDS (800-66537) or email hello@saniservice.com for a comprehensive inspection and a permanent fix.