Expert Aircond Repair and Troubleshooting in PJ & KL!

When Your Aircond Breaks Down, You Need Experience — Not Guesswork

A broken aircond in Malaysia is not a minor inconvenience — it is an emergency. Whether your unit has stopped cooling, is dripping water on your floor, making alarming noises, or tripping your electrical circuit, you need someone who can diagnose the problem accurately and fix it right the first time.

That is exactly what PJ Kool Aircond Service delivers. With over 20 years of repair experience across the Klang Valley, our senior technicians have seen and solved every aircond problem imaginable. No trainees, no apprentices, no guesswork — just experienced professionals who know exactly what they are doing.

Common Aircond Problems We Fix

Here are the most common aircond issues that homeowners and businesses in PJ and KL call us about:

Aircond Not Cooling (Blowing Warm Air)

This is the number one complaint we receive. If your aircond is running but the air is not cold, there are several possible causes:

• Low refrigerant gas — a gas leak or natural depletion means your unit cannot cool effectively
• Dirty evaporator coil — a clogged coil reduces heat exchange efficiency (in this case, a chemical wash may be the better solution)
• Faulty compressor — the compressor is the heart of your aircond system; if it fails, cooling stops entirely
• Defective capacitor — a blown capacitor prevents the compressor from starting properly

Our technician will check gas pressure using a PSI gauge, test the compressor amperage, and inspect the capacitor to identify the exact cause. For a more detailed breakdown of this issue, read our guide on why your aircon is not cold but wind is blowing.

Water Leaking from Aircond

Water dripping from your aircond is not only annoying — it can damage your walls, ceiling, and furniture. Common causes include:

• Blocked drainage pipe — dirt and algae buildup can clog the condensate drain line
• Cracked drainage pan — older units may develop cracks in the pan that collects condensation
• Improper installation angle — if the indoor unit is not tilted correctly, water pools instead of draining
• Frozen evaporator coil — ice buildup on the coil can melt and overflow the drainage system

We fix drainage issues on the spot in most cases. If the problem is caused by heavy dirt buildup, we may recommend a chemical wash to address the root cause.

Strange Noises (Rattling, Buzzing, Clicking)

Unusual sounds from your aircond are warning signs that should not be ignored:

• Rattling — loose components or debris inside the unit
• Buzzing — electrical issues, often related to the relay or contactor
• Clicking — thermostat or control board problems
• Squealing — fan belt or motor bearing issues
• Hissing — potential refrigerant gas leak

Our technicians are trained to diagnose the source of the noise quickly and determine whether it is a simple fix or a component that needs replacement.

Electrical Faults and Tripping

If your aircond is tripping the circuit breaker or not powering on at all, the issue is likely electrical:

• Faulty PCB (printed circuit board) — the brain of your aircond that controls all operations
• Blown capacitor — prevents the compressor or fan motor from starting
• Damaged wiring — corroded or loose electrical connections
• Sensor malfunction — temperature or room sensors giving incorrect readings

Electrical faults require professional diagnosis. Our technicians use multimeters and specialised diagnostic equipment to safely identify and resolve electrical issues.

Our Diagnostic and Repair Process

Step 1 — Tell Us What Is Wrong

WhatsApp us at 012-2252 623 with a description of your aircond problem. Include your unit brand (Daikin, Panasonic, York, etc.), horsepower, and the type of issue you are experiencing. We will schedule an appointment — often same-day or next-day.

Step 2 — Thorough On-Site Diagnosis

Our senior technician arrives with a full kit of diagnostic equipment. The RM50 diagnostic check includes:

• Visual inspection of the indoor and outdoor units
• Circuit board (PCB) check for electrical faults
• Sensor testing for temperature and room sensors
• Compressor amperage reading to verify motor health
• Gas pressure check (PSI) to detect leaks or low refrigerant
• Electrical connection inspection for loose or corroded wiring
• Capacitor testing with a multimeter

Step 3 — Clear Quote, Your Decision

Once the problem is identified, we explain exactly what is wrong in plain language — no confusing technical jargon. You get a clear, upfront quote for the repair. If you proceed, the RM50 diagnostic fee is waived. If you decide not to proceed, you only pay the diagnostic fee. No pressure, no hard sell.

Step 4 — On-the-Spot Repair

Most repairs are completed during the same visit. Our technicians carry common replacement parts — capacitors, sensors, contactors, and more — so there is no need to schedule a second visit in most cases. After the repair, the unit is tested for at least 15 minutes to confirm the fix is solid.

Brands We Repair

Our technicians are experienced with all major aircond brands sold in Malaysia:

• Daikin — including inverter and non-inverter wall and ceiling models
• Panasonic — full range of residential and light commercial units
• York — popular in both residential and commercial installations
• Acson — a Malaysian favourite for reliability
• Mitsubishi — known for premium build quality
• Samsung — including their Wind-Free range
• LG — dual inverter and standard models
• Midea and Haier — budget-friendly brands we service regularly

Whether your unit is a basic non-inverter wall-mounted model or a multi-split inverter system, we have the expertise to diagnose and fix it.

Why Choose PJ Kool for Aircond Repair

No trainees — ever. We have a strict policy against sending inexperienced technicians to your home. Every repair job is handled by senior technicians with 10 to 20+ years of experience. When Mr. Heng founded PJ Kool Aircond Service in 2003, he made this a core principle — and we have never wavered.

Fair diagnostic pricing. The RM50 diagnostic fee is designed to be fair to both you and us. It covers the time and expertise of a senior technician performing a thorough check. And if you proceed with the repair, it costs you nothing extra. Learn more about the hidden costs of cheap RM50 aircond services and why transparent pricing matters.

Honest assessments. If your unit is beyond economical repair, we will tell you. We will never push a RM500 repair on a 15-year-old unit when a new installation would serve you better. Our technicians are trained to give honest recommendations.

Fast response across PJ and KL. We provide aircond repair services in Petaling Jaya, Damansara Jaya, Damansara Utama, Kota Damansara, Bandar Utama, Subang Jaya, Kelana Jaya, Puchong, and surrounding areas. Same-day appointments are available for urgent repairs.

Is your aircond giving you trouble? Do not sweat it — WhatsApp us at 012-2252 623 and let our senior technicians diagnose and fix it fast.