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HA-170 < SYMPTOM DIAGNOSIS > [TYPE 4] NOISE NOISE Symptom Table INFOID:0000000010704924 Symptom Noise source Probable cause Corrective action Unusual noise from compressor Inside of compressor Wear, breakage, or clogging of foreign Check compressor oil. Re- Magnet clutch Contact of clutch disc with pulley. Check clearance between . Compressor body Loosened compressor mounting bolts. Check bolts for tightness. Unusual noise from cooler piping. Cooler piping (pipe and Improper installation of clip and brack- Check the installation condi- Unusual noise from expansion Expansion valve Shortage of refrigerant. • Check for leakage. evacuate refrigerant cycle Wear, breakage, or clogging of foreign Eliminate foreign material Unusual noise from belt. — Loosened belt Check belt tension. Refer to (K9K), (R9M). Internal compressor parts get locked Replace compressor. |