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HEATING, VENTILATION AND AIR CONDITIONING (HVAC) 1A–41 Diagnosis Air Conditioning Cycle Diagnosis *For the execution of the charging and discharging Condition Possible cause Correction No cooling or insufficient cooling. Magnetic clutch does not run. Refer to “Magnetic Clutch Diagnosis" in this section. Compressor is not rotating properly. Adjust the drive belt to the specified Compressor is not rotating properly. Clean the magnetic clutch face or Compressor is not rotating properly. Adjust the clearance. Refer to Compressor is not rotating properly. Replace the compressor Compressor is not rotating properly. Replace the compressor Insufficient or excessive charge of Discharge and recover the Leaks in the refrigerant system. Check the refrigerant system for Condenser is clogged or insufficient Clean the condenser or replace as Temperature control link unit of the Repair the link unit. Unsteady operation due to a foreign Replace the expansion valve. Poor operation of the electronic Check the electronic thermostat and Insufficient velocity of cooling air. Evaporator clogged or frosted. Check the evaporator core and Air leaking from the cooling unit or Check the evaporator and duct Blower motor does not rotate Refer to Fan Control Lever (Fan |