LG HBLG2350E Service Manual - Page 26

COMPLAINT Compressor cycles on overload. CAUSE Fan motor Condenser air flow restriction Insufficient cooling Excessive noise Condenser fins (damaged) Capacitor Wiring Refrigeration system Air filter Exhaust damper door Unit undersized Blower or fan Copper tubing Auto air-swing fails. Wiring Synchronous motor. REMEDY If not running, determine the cause. Replace if required. Remove the cabinet, inspect the interior surface of the condenser. If restricted, clean carefully with a vacuum cleaner (do not damage fins) or brush. Clean the interior base before re-assembling. If the condenser fins are closed over a large area on the coil surface, head pressures will increase, causing the compressor to cycle. Straighten the fins or replace the coil. Test the capacitor. Check the terminals. If loose, repair or replace. Check the system for a restriction. If restricted, clean or replace. Close if open. Determine if the unit is properly sized for the area to be cooled. Check the set screw, or clamp. If loose or missing, correct. If the blower or fan is hitting scroll or barrier, rearrange the air handling parts. Remove the cabinet and carefully rearrange the tubing not to contact the cabinet, compressor, shroud, and barrier. Check terminals. If loose, repair or replace. Check the synchronous motor for open circuit. Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 26 - LGE Internal Use Only