Reasons for Civic's Air Conditioning Not Cooling

[DelReagan]

The following are the reasons for the Civic's air conditioning not cooling: 1. The condenser mesh behind the front grille is covered with dust, leading to poor cooling performance. Use a water hose to clean the dust off the condenser mesh during car washing. 2. Issues with the condenser require cleaning it and inspecting the air conditioning belt and tensioner pulley. 3. The 'magnetic clutch switch' of the air conditioning system is faulty; when it fails to engage, the system won't power on to cool. Replace the 'magnetic clutch switch (1,004 CNY at 4S shops)' and the pulley (around 300 CNY). 4. Problems with the air conditioning compressor necessitate removing and replacing it with a new one. 5. Insufficient refrigerant (commonly known as 'Freon' shortage). Under an ambient temperature of about 35°C, normal conditions are: low pressure at 0.45 MPa, high pressure above 2.5 MPa, and static pressure between 1.1-1.2 MPa. This situation typically occurs in older air conditioning systems used for three to four years. The air conditioning doesn't completely fail to cool but shows reduced cooling efficiency.