Apart from its filters, your air-conditioner’s evaporator coil and condenser coil collects dirt on its own over time. Despite having a regularly maintained filter, dirt will still accumulate on the coils, which will impair its ability to absorb heat. For outdoor condenser coils, you can observe if dirt collects on its fins.


  • A clean filter prevents the evaporator coil from soiling quickly.
  • Check your evaporator coil every year and clean it as necessary.
  • Minimize dirt and debris near the condenser unit.