Aircond Chemical Wash for Condo in Bangsar

The Problem

Ms. Wong noticed a musty, moldy smell every time her airconds turned on. The smell had gotten worse over the past few months, and her daughter started having sneezing fits and watery eyes whenever she spent time in the bedrooms.

The units hadn't been serviced in over 2 years. What started as a faint odor had become unbearable—a clear sign of mold and bacteria growth inside the AC units. She was worried about the health impact on her family, especially with everyone working and studying from home.

Our Assessment

When our technician arrived, the smell hit immediately—that distinctive musty odor of mold growing inside an AC system. Opening the front panels confirmed the worst.

Upon opening the indoor units, we found:

This condo unit needed a chemical wash rather than a basic clean. If you're unsure which service your unit needs, our guide on cleaning vs chemical wash explains how to tell the difference based on symptoms.

• Black mold colonies on evaporator coils – The dark patches were visible across all fin surfaces, releasing spores into the air
• Green algae growth near drainage – Thriving in the constant moisture, blocking water flow and creating that swamp-like smell
• Bacterial slime in drain trays – A breeding ground for allergens being blown directly into the rooms

A standard cleaning wouldn't cut it. We recommended full chemical wash service for all 3 units to properly dissolve and remove the built-up grime.

The Chemical Wash Process

Our technician protected the surrounding furniture and flooring before starting. Each unit took approximately 45 minutes to complete:

• Step 1: Remove and wash air filters
• Step 2: Cover electrical components and motor
• Step 3: Apply chemical solution to evaporator coils
• Step 4: Let solution dissolve grime for 10-15 minutes
• Step 5: High-pressure rinse to flush out debris
• Step 6: Clean drainage tray and flush drain pipe
• Step 7: Clean blower fan blades
• Step 8: Reassemble and test

The amount of black water that came out during rinsing shocked even our technician-a clear sign of how much buildup had accumulated over 2 years.

The Results

Maintenance Recommendations

We advised Ms. Wong to schedule regular aircond service in Bangsar every 3-4 months to prevent this level of buildup from happening again. For her usage pattern (8-10 hours daily while working from home), we recommended:

• Monthly filter cleaning (DIY-just rinse with water)
• Professional cleaning every 3 months
• Chemical wash once a year as preventive maintenance

Neglecting regular maintenance can also lead to drainage problems. See how we helped a client in Mont Kiara with a water leaking aircond caused by clogged drainage.