There could be several reasons why an air conditioner turns on but does not cool the room adequately. Here are some possible explanations:
Insufficient cooling capacity: The air conditioner may be undersized for the room or area it is trying to cool. If the AC unit is too small, it may struggle to effectively cool the space, especially during hot or humid weather.
Dirty or clogged air filters: If the air filters in the AC unit are dirty or clogged, they can restrict airflow and reduce the cooling efficiency. Check the filters and clean or replace them if necessary.
Blocked or obstructed condenser unit: The outdoor condenser unit of the air conditioner needs adequate airflow to dissipate heat. If the condenser is blocked by debris, vegetation, or other obstructions, it can limit its ability to cool the refrigerant effectively.
Refrigerant leak: A refrigerant leak can result in an insufficient amount of refrigerant in the AC system. Low refrigerant levels can cause the air conditioner to struggle in cooling the air properly. If you suspect a refrigerant leak, it's best to contact a professional technician to diagnose and repair the issue.
Faulty or worn-out compressor: The compressor is a vital component of the air conditioning system. If the compressor is malfunctioning or worn out, it may not be able to adequately compress the refrigerant, resulting in reduced cooling performance.
Thermostat issues: The thermostat controls the temperature settings of the air conditioner. If the thermostat is not calibrated correctly or is faulty, it may not signal the AC unit to cool the room to the desired temperature.
If you're experiencing issues with your air conditioner not cooling properly, it's recommended to have a professional HVAC technician inspect and diagnose the problem. They will be able to identify the specific cause and provide appropriate repairs or solutions to restore the cooling performance of your air conditioner.