Air Conditioner Maintenance: How to Achieve the Best Results

Proper air conditioner maintenance is essential if you want your unit to work efficiently and last as long as possible. Without regular care, its performance will decrease, energy consumption will rise, and you’ll end up with higher electricity bills.

The simplest task you can do yourself is to keep the air filter clean. Dirty and clogged filters force your air conditioner to work harder, which reduces the overall efficiency of the system. In addition, a dirty filter can carry dust and debris directly to the evaporator coil, making it less effective at absorbing heat.

Keep in mind that not all filters are reusable. Some must be replaced after a specified time period. During the warm season, filters should be replaced monthly—or more often if the air conditioner is used continuously. A clean filter can reduce electricity bills by 5–15%.

You can also opt for a self-cleaning air conditioner. Such models are available in the NØRDIS product range.

If you have been using your air conditioner for a while, it’s worth checking the coils as well. Even if you regularly clean the filter, over time both the evaporator and condenser coils will accumulate dirt. This can restrict airflow and reduce the coil’s ability to absorb heat. To prevent this, clean the evaporator coil once a year.

Don’t forget about the outdoor condenser coils, especially if you live in a dusty area or near many trees. Clear the area around the outdoor unit: remove dirt, debris, and mow any vegetation within 0.6 m (2 ft) to ensure proper airflow.

The aluminum fins on the evaporator and condenser coils should be maintained with a special fin comb designed for this purpose. Since aluminum fins bend easily, they can block airflow through the coils if not properly straightened.

Another task you can handle yourself is cleaning the drain lines. Drain pipes help maintain the correct condensation level. To prevent clogs and avoid moisture-related stains on walls or carpets, run a sturdy wire through the pipes to remove any blockages.

And finally, if you feel your air conditioner needs professional care, contact the NØRDIS expert team. Experienced specialists will check whether your unit has enough refrigerant, inspect for leaks, measure airflow through the coil, examine the key components, and provide guidance on further maintenance.