How to Improve AC Cooling Performance

You do not always need a new AC for better cooling. Often a few habits and a bit of upkeep make a big difference. Here is what works.

Keep the AC itself in good shape

• Clean the filter regularly. See how to clean your AC filter.
• Get a regular service. Clean coils and a clear drain help the AC cool properly. See how often to service your AC.
• Keep the outdoor unit clear of dust, leaves and obstructions, and make sure it has space to breathe.

Make the room easier to cool

• Keep doors and windows closed while the AC is running.
• Use curtains or blinds to block direct sun in the afternoon.
• Seal gaps around windows and doors where cool air escapes.
• Avoid heat sources such as ovens, lamps or large electronics near the AC’s sensor.

Use the AC smartly

• Set it to about 24–26°C. A lower setting does not cool faster; it just runs longer.
• Use a ceiling fan to spread the cool air.
• Do not block the airflow from the indoor unit with furniture or hanging items.
• Use sleep or timer modes for night use, if your AC has them.

Check the AC size and condition

An undersized AC cannot keep up in a large or sun-heated room. An old AC also loses efficiency over time. If it is very old, see when to replace your old AC.

When it still does not cool

If the filter is clean, the room is sealed and the AC still struggles, it may have a gas leak, a dirty coil or a faulty part. See why an AC stops cooling, or get AC troubleshooting help in Greater Noida to find the real cause.