Lift the cover on your aircon and you’ll see the filters and the coil. Behind them is a long, ribbed cylinder that spins to push air into your room. That’s the blower wheel. It’s where a lot of the grime ends up, and it’s the part many quick services never touch.
Why it gets so dirty
The blower sits in a damp spot, right after the cold coil. Fine dust that gets past the filter sticks to its wet fins and builds up over months. In Singapore’s humidity, that layer can turn into black sludge.
Signs yours needs cleaning
- Weak airflow, even with clean filters
- Black specks on the vents or on the wall below the aircon
- A musty smell when the aircon starts
- A slight rattle or wobble, since uneven dirt can throw the wheel off balance
You can check for yourself. Switch off the aircon, shine your phone torch through the vent and look at the fins. They should be clean and clearly separated. If they look furry or black, it’s due.
Why many services skip it
It takes time. To wash it properly, the technician has to get at a part that’s buried inside the unit, and a quick rinse of the filters and front won’t reach it. On a low-priced job with a tight schedule, it’s the first thing to go.
Three ways we clean it
Taken out and brush-cleaned. In our Deluxe General Servicing, the blower comes out and gets brush-cleaned on its own. It’s free with the service, which starts at $65 for 1 unit with compressor clean, plus $10 for each extra unit. A few models don’t allow this, and we’ll tell you on the spot.
Jet-sprayed in place. In a BeeChem Wash™, the blower stays where it is and gets jet-sprayed along with the coils using our BeeChem™ solution. From $75.
Fully dismantled. In a Full Dismantle Chemical Overhaul, every part comes apart and is washed. From $160. Best kept for very dirty units.
Can I clean it myself?
We’d rather you didn’t. The fins are delicate, the wheel is balanced, and water near the electronics needs care. Washing your filters is the job to do at home.
For a deeper clean of the coil too, see aircon chemical wash, which compares jet wash, chemical wash and full overhaul.
Curious what’s in yours? Book online or WhatsApp us a torch photo.