Top 6 Reasons Your Aircon Is Leaking in Klang Valley & How to Fix It | Sunmoon Aircond

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Top 6 Reasons Your Aircon Is Leaking in Klang Valley & How to Fix It | Sunmoon Aircond

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Discover why your aircond is leaking and learn preventive tips. From clogged drain pipes to low refrigerant, we cover the top causes and solutions for Klang Valley homeowners.

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  • Primary: “aircon leaking” (1.5%–2%)

  • Secondary: “AC service Klang Valley” (1%), “aircond maintenance” (1%), “preventive AC maintenance” (0.5%–1%)

Why Is Your Aircon Leaking? Top 6 Causes & Solutions for Klang Valley

A dripping aircon isn’t just messy—it signals underlying issues that can escalate into costly repairs or even water damage. In Klang Valley’s humid climate, condensate problems are all too common. This post unpacks the top six reasons your aircon is leaking, offers simple DIY checks, and explains why scheduling professional AC service in Klang Valley pays off.

1. Clogged Drain Pipe

What Happens:
Over weeks or months, the PVC condensate line accumulates dust, dirt, and algae. When the line blocks, the water has nowhere to go but back into your indoor unit—then onto your floors.

DIY Check & Fix:

  • Locate the outdoor drain access.

  • Use a wet‑dry vacuum or compressed air to clear the blockage.

  • Flush with a mild bleach solution monthly to prevent algae growth.

2. Dirty Air Filter

What Happens:
A clogged filter chokes airflow, causing the evaporator coils to freeze. When they thaw, the sudden surge in condensate overwhelms the drain pan.

DIY Check & Fix:

  • Inspect filters every 4–8 weeks.

  • Wash reusable filters or replace disposable ones.

  • Clean filters help maintain airflow and improve your aircond maintenance routine.

3. Low Refrigerant Levels

What Happens:
Insufficient refrigerant causes coil temperatures to fall below freezing—ice forms and then melts excessively, resulting in leaks.

Professional Tip:
Only licensed technicians should handle refrigerant. If you suspect a leak, book an AC service in Klang Valley to check pressures, repair the leak, and top up your system.

4. Rusty or Cracked Drain Pan

What Happens:
The drain pan under the evaporator catches condensate before it exits via the drain pipe. Over time, corrosion or stress cracks let water escape.

DIY Workaround:

  • Slide a temporary tray under your unit to catch drips.

  • Schedule a pan replacement during your next preventive maintenance visit.

5. Improper Installation

What Happens:
An unlevel indoor unit misdirects condensate, diverting it toward walls or ceilings instead of into the drain line.

DIY Check & Fix:

  • Place a small spirit level on top of the unit.

  • Shim the mounting frame until it’s perfectly horizontal.

  • If you’re uncomfortable, call a professional installer.

6. Blocked or Faulty Condensate Pump

What Happens:
High‑rise or split‑system installations often rely on a condensate pump. If its float switch jams or the impeller clogs, water back‑up leads to leaks.

Professional Tip:
Pumps require electrical and mechanical inspection. Include condensate pump servicing in your preventive AC maintenance plan.

Why Regular AC Service in Klang Valley Matters

  1. Avoid Costly Repairs: Early detection stops minor leaks from turning into water‑damaged ceilings or walls.

  2. Maximize Efficiency: Clean filters and correct refrigerant levels reduce energy bills.

  3. Extend System Life: Routine checks prevent corrosion, rust, and mechanical failures.

“A well‑maintained aircon can run up to 30% more efficiently and last 2–3 years longer.”

Schedule Your Preventive Maintenance Today

Sunmoon Aircond & Electrical is ISO‑14001 and MyHijau certified, with over 20 years of HVAC expertise in Klang Valley. Our maintenance plans include:

  • Filter cleaning & replacement

  • Drain pipe flushing & sanitizing

  • Refrigerant pressure checks

  • Drain pan inspection & replacement

  • Condensate pump testing

Don’t wait for a leak to strike—protect your home and wallet now.

👉 Book online: www.sunmoonhvac.com/maintenance
👉 WhatsApp us: https://wa.link/h7fwxz | https://wa.link/yld551

Internal Link Suggestion:
Link to your AC installation page for readers interested in new systems: /ac-installation-klang-valley

Published by Sunmoon Aircond & Electrical Sdn Bhd – Your AC Experts in Klang Valley

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