Common Aircon Problems in Singapore
Start from what you notice. Learn the likely cause, how urgent it is, and what to check before calling anyone.
Quick Problem Lookup
Pick the closest match to understand what's likely going on.
SAFETY WARNING
Stop using the unit and contact a technician if the breaker trips repeatedly, you smell burning, see sparks, hear loud electrical buzzing, or water is leaking from places it normally should not.
Browse by Category
Start from what you see or hear. Each category groups related symptoms so you can narrow the cause faster.
Cooling35 cases
Not cold, cold then warm, takes too long to cool, or not reaching set temperature.
Water & Leaks16 cases
Indoor leaking, outdoor dripping, condensation on pipes, or water pooling.
Noise & Vibration6 cases
Clicking, hissing, gurgling, buzzing, or vibrating from indoor or outdoor unit.
Power & Electrical31 cases
Cannot turn on, turns off by itself, breaker trips, short cycling, or flashing lights.
Smell & Air Quality
Bad smell at startup or shutdown, odor after cleaning, mist, or humidity issues.
Controls & Display19 cases
Remote not working, fan speed stuck, louvre not moving, or no airflow from unit.