This is the one aircon job you don’t need us for. Washing the filter takes about five minutes, needs no tools, and it’s the most useful thing you can do between servicing visits. I’m happy to lose this one to you.
What you’ll need
A tap, a soft brush or old toothbrush, a little mild dish soap if the filter is very dirty, and somewhere shady to dry it.
Step by step
- Switch off the aircon, at the remote and at the isolator.
- Lift the front cover. On most wall units, it hinges upward from the bottom corners.
- Slide out the filters. They’re usually two mesh panels. Pull gently, and don’t force them.
- Vacuum or tap off the loose dust over a bin, which saves you a muddy sink.
- Rinse from the back, so water pushes the dust out instead of further in. Use normal tap water.
- Brush gently with a little soap if needed, then rinse again.
- Air-dry completely in the shade.
- Slide them back in and close the cover until it clicks.
How often?
Every two to four weeks is a good habit if you use the aircon daily. Go more often if you have pets, live near a main road or if there’s construction nearby.
Common mistakes
- Using hot water or a hair dryer. Heat can warp the mesh and frame.
- Putting the filter back wet. Damp filters and Singapore humidity are a bad mix.
- Running the aircon without filters. Dust goes straight onto the coil.
- Scrubbing hard. The mesh tears easily.
What to leave to us
The coil, blower, drain and outdoor unit are out of reach for a filter wash, and that’s where the dirt builds up over months. Spraying a store-bought cleaner into the unit isn’t a good substitute. It can leave residue behind and get liquid where it shouldn’t, near the electrical parts. That’s what regular servicing is for. See how often to service your aircon.
Ready for a proper clean? Book online or WhatsApp us your number of units.