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Symptom seen in refrigeration system Probable cause Diagnosis Remedy • Pressure low on both low and high pressure sides • Insufficient cooling performance Gas leakage at some place • Insufficient refrigerant in system • Refrigerant leaking - Check for gas leakage with gas leak detector - Charge proper amount of refrigerant - If indicated pressure value is near 0 when 4. Poor circulation of refrigerant
Symptom seen in refrigeration system Probable cause Diagnosis Remedy • Pressure low in both low and high pressure sides • Frost on tube from receiver to unit Refrigerant flow obstructed Condenser clogged Replace drier 5. Refrigerant does not circulate |