1. Circuit problem: It may be that the power supply voltage is abnormal or the phase is missing. The circuit needs to be checked and repaired. At the same time, check whether the wires in the cooling circulation system of the air-cooled chiller are in good contact and whether there are any problems such as looseness.
2. Poor overcurrent protection: Each compressor is equipped with an overcurrent protector. When the operating current of the compressor is greater than the preset value (for a certain period of time), the overcurrent protector operates and cuts off the power supply of the compressor to prevent the compressor from burning out the motor coil. If the current is within the normal range and does not increase for a long time, the thermal protector may be defective (if the setting value is correct). At this time, the air-cooled chiller can replace the thermal protector of the same model, set the action value, and restore the unit to normal operation.
3. Compressor failure: It may be that the compressor lacks refrigeration oil or the refrigeration oil deteriorates during use, resulting in excessive wear resistance of the mechanical operating part and mechanical damage, resulting in the mechanical chuck being unable to work and the compressor being overloaded by the host. . You can tell by listening to the sound of the compressor running. If it makes a very harsh sound like a stuck cylinder, it may be that the compressor is broken. At this time, replacing the compressor of the air-cooled chiller is a good solution.
4. Compressor motor coil failure: Usually the coil is overheated, causing a partial short circuit or overall burnout. An experienced electrician can use a high-precision multimeter to measure whether the coil is burned out, that is, whether the resistance values of the three-phase windings of the motor are equal, and whether the insulation resistance values of each phase winding and the shell are within a reasonable range. If it is determined that the compressor motor winding is damaged, the air-cooled chiller can only solve the problem by replacing the compressor.
5. Capacitor problem: If the capacitor is found to be aged or damaged, it needs to be replaced in time. When replacing, be sure to select a capacitor with the same parameters as the original capacitor.
6. Condenser failure: Dust and debris may accumulate on the surface of the condenser, and the condenser needs to be cleaned. When cleaning, you need to turn off the power first and wait for cooling, and then use cleaning tools such as compressed air or a soft brush to clean the dust and debris on the surface of the condenser. After the air-cooled chiller is cleaned, the system needs to be restarted for inspection.
It should be noted that the handling of the above situations should be carried out by professional and technical personnel, because it involves the safety of electrical systems and mechanical equipment. If you are not sure how to deal with these problems with your air-cooled chiller, it is recommended to contact a professional technician for repair services. Follow me to help you learn more about the chiller industry.