Aircon Troubleshooting Guides
Diagnose your aircon problem and get step-by-step instructions to fix it. Each guide tells you exactly what you can do yourself and when it's time to call a professional.
Not Cold
Aircon running but the room's still warm? A dirty filter is usually the culprit. Try these fixes before calling anyone.
Leaking Water
Water dripping from the indoor unit onto your floor or wall. Usually a blocked drain pipe -- here's how to check and clear it.
Noisy
Buzzing, rattling, whistling, or grinding? Each sound points to a different issue. Some are easy fixes, others need a technician.
Smelly / Bad Odour
Musty, sour, or vinegar smell when the aircon kicks in? Almost always mould or bacteria growing inside the unit. Fixable.
Short-Cycling
Aircon turns on for a few minutes, shuts off, then starts again. This on-off cycling wastes electricity and wears out the compressor.
Tripping / Auto Shut-Off
Aircon keeps tripping the breaker or shutting itself off. Don't just keep flipping the switch -- find out why.
Ice Formation
Frost or ice on the copper pipes or indoor unit. Usually means blocked airflow or low gas -- sometimes both.
Remote Not Working
Remote stopped responding? Usually dead batteries. But if that's not it, here's what else to check.
Pro Tip: Start With the Basics
Over 60% of aircon problems in Singapore are caused by dirty filters or clogged drainage. Before anything else, clean your filters and check your drain pipe. These two steps alone can save you a $60+ service call.