There are six main reasons for the high temperature and low temperature test chamber not to cool down. Please check and repair one by one.
1. Determine whether there is voltage supply to the compressor 1. Is the AC contactor connected to the compressor unit sucked?
2. Is the wire connecting the compressor broken or not connected properly?
3. Determine whether the voltage meets the rated voltage requirements of the compressor.
Second, determine the current of the compressor group, the current must reach the rated current of the compressor. If the voltage is normal, the current does not meet the requirements, indicating the lack of refrigerant (refrigerant).
3. If the high and low temperature test chamber is a cascade unit, observe whether both units are running. If one unit is not working, it should be stopped immediately. Find out the cause of the compressor that is not working and analyze it.
4. Observe whether the cooling fan of the condenser is working. At work, the steering of the cooling fan is normal? When working normally, the wind direction should be blown outward.
5. Determine whether the compressor lacks refrigerant. Use a pressure gauge to observe whether the pressure of the compressor after the current working compressor is normal or the temperature of the high pressure exhaust pipe of the compressor. When normal, the temperature should be very high and hot. In the case of dual-unit refrigeration, it is necessary to determine which compressor lacks refrigerant.
6. Observe whether the circulating fan in the room is working normally. If the burnout does not work, the evaporator cannot evaporate normally, so that it cannot be cooled.
1. Determine whether there is voltage supply to the compressor 1. Is the AC contactor connected to the compressor unit sucked?
2. Is the wire connecting the compressor broken or not connected properly?
3. Determine whether the voltage meets the rated voltage requirements of the compressor.
Second, determine the current of the compressor group, the current must reach the rated current of the compressor. If the voltage is normal, the current does not meet the requirements, indicating the lack of refrigerant (refrigerant).
3. If the high and low temperature test chamber is a cascade unit, observe whether both units are running. If one unit is not working, it should be stopped immediately. Find out the cause of the compressor that is not working and analyze it.
4. Observe whether the cooling fan of the condenser is working. At work, the steering of the cooling fan is normal? When working normally, the wind direction should be blown outward.
5. Determine whether the compressor lacks refrigerant. Use a pressure gauge to observe whether the pressure of the compressor after the current working compressor is normal or the temperature of the high pressure exhaust pipe of the compressor. When normal, the temperature should be very high and hot. In the case of dual-unit refrigeration, it is necessary to determine which compressor lacks refrigerant.
6. Observe whether the circulating fan in the room is working normally. If the burnout does not work, the evaporator cannot evaporate normally, so that it cannot be cooled.
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