Clean the filters yourself
- Switch the AC off at the remote and the breaker.
- Lift the front panel and slide out the mesh filters.
- Vacuum or tap off loose dust, then rinse in clean water. Use mild soap only if they are greasy.
- Let them dry fully in the shade, not in direct sun, then slide them back in.
- Do this every two weeks in summer, and more often in dusty areas or near roads.
What needs a technician
Do not pressure-wash the indoor unit yourself or spray water near its electronics.
- Indoor coil and blower: cleaned with a coil cleaner and covered drain bag, so dirty water does not run down the wall.
- Outdoor coil: washed to remove the dust and leaves that block heat release.
- Drain line: cleared so water does not leak indoors.
- Electrical and gas checks: connections, current draw and pressures.
A simple yearly routine
| When | What |
|---|---|
| Every 2 weeks in summer | Wash the filters |
| Before summer (March or April) | Full service: coils, drain, electrical check |
| Mid-season in dusty areas | Rinse the outdoor coil |
| Before winter, for heat pumps | Check heating mode and filters |
Signs your AC needs a service now
- Weaker airflow or cooling than last summer.
- Water dripping from the indoor unit.
- A musty smell when it starts.
- Ice on the pipes or unusual noise.
Frequently asked questions
How often should I clean my AC filter?
Every two weeks during summer, and more often in dusty areas. A clean filter keeps cooling strong and lowers electricity use.
How often does a split AC need a full service?
Once a year before summer for most homes, with an extra outdoor coil rinse mid-season in very dusty areas.
Can I wash the AC coils myself?
Filters, yes. Coils are best left to a technician, who can clean them without wetting the electronics or the wall.
