1. Poor Refrigeration Effect

• Insufficient refrigerant or refrigerant leakage, resulting in reduced refrigeration capacity.
• Dirty condenser, which impairs heat dissipation and affects refrigerant condensation.
• Excessively thick frost on the evaporator, hindering heat exchange and reducing refrigeration efficiency.
• Reduced compressor efficiency due to wear, component aging, etc., failing to provide sufficient refrigeration capacity.
• Improper adjustment of the expansion valve, leading to inappropriate refrigerant flow.

• Check if the refrigerant is sufficient. If there is a leak, identify and repair the leak point, then replenish the refrigerant.
• Regularly clean the condenser to remove dust, dirt, and other impurities.
• Timely defrost the evaporator using manual defrosting or automatic defrosting devices.
• Overhaul the compressor and replace worn parts or the compressor if necessary.

• Readjust the expansion valve to ensure a reasonable refrigerant flow.

  
  

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