FATC 32 NOISE AND VIBRATION WHILE OPERATING A/C SYSTEM TROUBLESHOOTING HINTS Noise when compressor running at higher speed-Step 1-2 Vibration when compressor running at higher speed-Step 3 Hose or refrigerant line interference noise -Step 4. STEP INSPECTION ACTION 1 Inspect oil quantity in the system. Check oil leakage from any joint of Ac system Yes Top up correct grade and quantity of oil No Go to next step 2 Compressor mounting need to check. Bracket mounting to be check. Yes Ensure proper tightening of all related fastener No Replace AC compressor 3 Inspect AC compressor interface vibration. Yes Check damper condition. Bolt tightening torque. No Go to next step 4 Inspect compressor Suction and Discharge pipe. Mounting clamps and rubber isolator. Yes Check compressor suction / discharge pipe, Its rubber isolator No Go to next step REFRIGERATION CYCLE TROUBLESHOOTING Sr. No. OCCURANCE POSSIBLE CAUSE REMEDY 1 Insufficient refrigerant Condition Air conditioner does not cool effectively Symptoms in refrigerant cycle Pressure on both the high and low pressure sides is low Air around the air outlet is slightly cold Cause There is gas leakage in the refrigerating cycle Diagnosis Insufficient refrigerant in the refrigerating cycle Refrigerant leakage Countermeasures Locate the leakage and repair Recharge refrigerant to the specified amount
RkJQdWJsaXNoZXIy MTIwNTUz