If your Daikin air conditioner is running but not cooling while the fan is still working, there could be several potential causes for this issue:
Thermostat Settings: Verify that the thermostat is set to "Cool" mode and that the temperature setting is lower than the current room temperature. Additionally, ensure that the fan setting is set to "Auto" rather than "On" so that the fan operates only when the cooling system is actively cooling.
Dirty Air Filter: A dirty or clogged air filter can restrict airflow and hinder the cooling process. Check the air filter and clean or replace it if necessary, following the manufacturer's guidelines.
Refrigerant Leak: Low refrigerant levels due to a leak can result in inadequate cooling. If you suspect a refrigerant leak, it's best to contact a professional HVAC technician to diagnose and repair the issue. They can locate the leak, repair it, and recharge the system with the appropriate amount of refrigerant.
Faulty Compressor: The compressor is responsible for cooling the refrigerant and circulating it through the system. If the compressor is not functioning correctly, it can lead to insufficient cooling. A malfunctioning compressor typically requires professional attention and may need to be repaired or replaced.
Condenser Issues: The outdoor condenser unit plays a vital role in dissipating heat from the refrigerant. If the condenser coils are dirty or blocked by debris, it can restrict proper heat transfer and result in poor cooling performance. Cleaning the condenser coils or removing any obstructions may help resolve the issue.
Electrical Problems: Faulty electrical connections, such as a malfunctioning capacitor or a tripped circuit breaker, can prevent the air conditioner from cooling effectively while allowing the fan to continue operating. Electrical issues require professional expertise to identify and resolve.
Given the complexity of diagnosing and repairing air conditioning systems, especially with specific brands like Daikin, it's recommended to contact a qualified HVAC technician who is familiar with Daikin equipment. They can assess the situation, perform a thorough inspection, and provide the necessary repairs or maintenance to restore your Daikin AC's cooling performance.