There could be several reasons why your air conditioner is running but not cooling properly. Here are a few common issues to consider:
Thermostat Settings: Check the thermostat settings to ensure it is set to "Cool" mode and the temperature is set lower than the current room temperature. Make sure the fan setting is set to "Auto" rather than "On" so that the fan only runs when the cooling system is actively cooling.
Airflow Restrictions: Check the air vents and registers throughout your home to ensure they are open and not blocked by furniture, curtains, or other obstructions. Restricted airflow can hinder the cooling process.
Dirty Air Filter: A clogged or dirty air filter can restrict airflow and reduce the cooling efficiency of your air conditioner. Check the filter and clean or replace it if necessary, following the manufacturer's instructions.
Refrigerant Leak: Low refrigerant levels due to a leak can prevent the air conditioner from cooling effectively. If you suspect a refrigerant leak, it's best to contact a professional HVAC technician to diagnose and repair the issue.
Frozen Evaporator Coil: If the evaporator coil inside the indoor unit freezes, it can restrict airflow and result in insufficient cooling. This could be caused by a dirty air filter, low refrigerant levels, or a malfunctioning blower fan. Turn off the air conditioner and allow the coil to thaw completely before contacting a professional technician for assistance.
Dirty Condenser Unit: The outdoor condenser unit can accumulate dirt, debris, and grime over time, leading to reduced cooling performance. Ensure the condenser unit is clean and free from any obstructions. You can gently hose it down, but avoid using excessive water pressure.
Faulty Components: Various components within the air conditioning system, such as the compressor, fan motor, or capacitor, can experience faults or failures, leading to inadequate cooling. If you suspect a mechanical issue, it's advisable to have a qualified HVAC technician inspect and diagnose the problem.
If you have checked these common issues and your air conditioner is still not cooling properly, it's recommended to contact a professional HVAC technician to assess and resolve the problem. They have the expertise and tools to identify the root cause and perform necessary repairs or maintenance.