Home / Punggol
Noisy Aircon Keeping Your Punggol Flat Awake?
Aircon noises are surprisingly good witnesses — a noisy aircon almost always tells you what's wrong if you listen to the type of sound rather than just the volume. Before you book anything, identify yours from the lineup below: rattle, click, gurgle, grind, or hiss. Each one has a usual suspect, a typical cost, and a different level of urgency, and describing the sound accurately over WhatsApp gets you the right visit the first time.
Rattling or buzzing: something's loose
The most common and least sinister. Front covers that weren't clipped back fully after a filter rinse, debris sitting in the blower path, or panels loosened by years of vibration all buzz at certain fan speeds. The quick test: press gently on the front panel while it runs — if the sound changes, it's a loose-parts problem. Usually resolved within a $40 general service, where everything gets removed, cleaned and reseated properly.
Clicking: normal, until it isn't
Single clicks at start-up and shut-down are just plastic expanding and relays doing their job — no action needed. Rhythmic clicking while running is different: often the fan clipping something (a zip tie, a shifted component, accumulated grime on the blower throwing its balance), occasionally an electrical relay misbehaving. Persistent rhythmic clicking is worth a look — a $40 service where it's debris or dirt, or a $50 diagnosis (waived on repair) where it's electrical.
Gurgling or trickling: air and water where they shouldn't be
Water sounds usually mean the condensate drain is partially blocked and the tray is pooling — the gurgle is often the prequel to a leak, so treat it as an early warning delivered free of charge. Refrigerant flow can also gurgle when gas is low. Both suspects get checked in one general service visit: drain flushed, gas pressure read at the condenser. Booking at the gurgle stage is cheaper than booking at the wet-wall stage.
Grinding or screeching: stop using it
Metal-on-metal grinding or a screech that scales with fan speed points at the blower motor or its bearings — the one indoor noise that gets worse expensively if you push through it. A failing bearing eventually seizes, and a seized motor can take more with it. Switch the unit off, use another room's cooling, and book the $50 diagnosis; you'll get a fixed repair quote (diagnosis fee waived if you proceed) and an honest opinion on repair versus replacement for older units.
Hissing: two very different meanings
A soft, steady airflow hiss through a slightly-open vent or fouled filter is benign and improves with cleaning. A pronounced hiss from the unit body or along the pipes — especially with cooling loss — can be refrigerant escaping, which explains itself: leaks hiss. Cooling still fine, hiss faint? Mention it at your next service. Cooling fading alongside the hiss? Book promptly; a found-early leak is a much smaller job than a compressor that ran dry.
Frequently asked questions
How much does fixing a noisy aircon cost?
Tracks the sound: rattles and most clicks resolve within a $40 general service; gurgles usually cost $40 (drain flush) unless the coil's involved ($90 wash); grinding means a $50 diagnosis (waived on repair) plus a quoted fix. The noise type predicts the bill better than the loudness does.
My aircon got gradually louder over months. What does that mean?
Gradual loudening is usually accumulating dirt — grime on the blower wheel unbalances it and forces the fan to work harder and rougher. It's a cleaning trajectory, not a breakdown one: a $90 chemical wash that strips the blower typically restores the original sound level.
Is a noisy aircon dangerous to run overnight?
Rattles, clicks and gurgles: annoying, not dangerous — book at your convenience. Grinding, screeching or anything with a burning smell: switch off and don't run it overnight; those are the failures that compound. When in doubt, describe the sound on WhatsApp and we'll tell you which bucket you're in.
The noise is from the outdoor unit, not indoors. Same advice?
Condenser noise has its own set of suspects — mounting vibration, fan issues, compressor sounds — and its own page and diagnosis path. Short version: rhythmic knocking or a big change in the condenser's sound level is worth a visit, since one condenser serves your whole flat.
Record ten seconds of the sound and send it to our WhatsApp assistant — a real recording books the right visit better than any description. Slots at /book too.