LG Electronics L8004RY4, HB8004RA4, HB8004RB4, M1004R, M8004RY4, HB1004R Complaint Cause Remedy

Page 34

Troubleshooting Guide

COMPLAINT

CAUSE

REMEDY

 

 

 

 

Fan motor will not run.

No power

Check voltage at outlet. Correct if none.

 

 

 

 

 

Power supply cord

Check voltage to Control Box. If none, check power

 

 

supply cord. Replace cord if circuit is open.

 

 

 

 

 

Wire disconnected or con-

Connect wire. Refer to wiring diagram for terminal

 

nection loose

identification. Repair or replace loose terminal.

 

 

 

 

 

Capacitor (Discharge

Test capacitor.

 

capacitor before testing.)

Replace if not within ±10% of manufacturer's rating.

 

 

Replace if shorted, open, or damaged.

 

 

 

 

 

Will not rotate

Fan blade hitting shroud or blower wheel hitting

 

 

scroll. Realign assembly.

 

 

Units using slinger ring for condenser fan must have

 

 

1/4 to 5/16 inch clearance to the base. If it hits the

 

 

base, shim up the bottom of the fan motor with

 

 

mounting screw(s).

 

 

Check fan motor bearings; if motor shaft will not

 

 

rotate, replace the motor.

 

 

 

Fan motor runs

Revolves on overload.

Check voltage. If not within limits, call an electrician.

intermittently

 

Test capacitor.

 

 

 

 

Check bearings. Does the fan blade rotate freely?

 

 

If not, replace fan motor.

 

 

Pay attention to any change from high speed to

 

 

low speed. If the speed does not change, replace the

 

 

motor.

Fan motor noise.

Fan

If cracked, out of balance, or partially missing,

 

 

replace it.

 

Turbo

If cracked, out of balance, or partially missing,

 

 

replace it.

 

Loose clamper

Tighten it.

 

Worn bearings

If knocking sounds continue when running or loose,

 

 

replace the motor. If the motor hums or noise

 

 

appears to be internal while running, replace motor.

 

 

 

Compressor will not run,

Voltage

Check voltage.

but fan motor runs.

 

If not within limits, call an electrician.

 

 

 

 

Wiring

Check the wire connections, if loose, repair or

 

 

replace the terminal. If wires are off, refer to wiring

 

 

diagram for identification, and replace. Check wire

 

 

locations. If not per wiring diagram, correct.

 

 

 

 

34Room Air Conditioner

Image 34
Contents LG Room Air Conditioner Table of Contents Do not place the power cord near a heater Safety PrecautionsDo not disassemble or modify products Do not modify power cord length Plug in the power plug properlyUse the air conditioner on a single outlet circuit Ensure that the outer case is not damaged by age or wear Do not clean the air conditioner with waterBe cautious not to touch the sharp edges when installing Do not block the inlet or outletSymbols Used in this Manual DimensionsOutside Dimensions HBLG8004RA4/B4 CL8000ER Product SpecificationsItems Models HBLG1004RHow to Secure the Drain Pipe InstallationInstallation Check Select the Best LocationHow to Install Window RequirementsAttach L Bracket Locating Unit in WindowOutside Install the Sash Seal and Sash Lock Secure the Guide PanelsOperation Precaution The Remote Control unit will notFunction of Controls Front Grille DisassemblyMechanical Parts CabinetFAN Air Handling PartsAir Guide and Turbo Fan ShroudCompressor Electrical PartsOverload Protector CapacitorPower Cord MotorEvaporator Refrigerating CycleCapillary Tube Disassembly Pulling Vacuum Schematic Electronic ControlWiring Diagram Description QTY RemarksMain P.C.B Assembly Components LocationTroubleshooting Guide Piping SystemUnit runs but poor cooling Troubleshooting GuideIneffective Cooling Fails to Start Electrical Parts Troubleshooting Guide Possible TroubleCompressor does not operate Possible Trouble FAN does not operate Possible Trouble Function of Energy Saver does not operatePossible Trouble Remote controller does not operate Is the reset circuit OK? Select the desired Temp. to lower Number CN-AC/DC OK? YES Connect connector Complaint Cause Remedy Troubleshooting Guide Exploded View Replacement Parts List CL8000ER L1004R Replacement Parts ListDescription Remark M1004RM8004RY4 L8004RY4 NO3828A20472A February