LG Electronics GR-P227/L227, GR-P257/L257 service manual Structure Door foam Appearance Sag

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TROUBLE DIAGNOSIS

CLAIMS.

CAUSES AND CHECK POINTS.

HOW TO CHECK

10. Structure,

1) Door foam.

appearance

Sag.

Weak torque of

Bolt is loosened during

and others.

hinge connection.

transportaion.

Not tightly fastened.

Screw worn out .

Weak gasket

Adhesion surface.

adhesion.

Fixed tape.

Not well fixed.

Noise during

Hinge interference.

Bigger door foam.

operation.

Hinge-Pin tilted-Poor flatness.

No washer.

No grease and not enough

quantity.

Malfunction.

Not closed Interference between door liner and inner liner.

Refrigerator

Stopper worn out.

compartment is

Bad freezer compartment door

opened when freezer

assembly.

compartment is

No stopper.

closed (faulty stopper).

2) Odor.
		Temperature of						High.			Faulty damper control.
		refrigerator									Button is set at "weak".
		refrigerator									Button is set at "weak".
		compartment.									Door is open (interference by
		compartment.									Door is open (interference by
											food).
		Deodorizer.						No deodorizer.


								Poor capacity.
								Poor capacity.
		Food Storage.						Seal condition.
		Food Storage.						Seal condition.
								Store special odorous food.
								Store special odorous food.
		Others.						Long term storage.
								Long term storage.
								Odors from chemical procucts.

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Contents Refrigerator Contents Page Specifications Front ViewRef No. GR-L227 Ref No. GR-P257 Ref No. GR-L257 Parts Identification Freezer Refrigerator compartment compartmentRef No. GR-P227/GR-P257EXTERNAL Filter Parts Identification Parts Identification HOW to Install Refrigerator How to Adjust Door Height of RefrigeratorClass Shape and Spec Nomenclature How to Install Water PipeBefore Installation Connection of Pipe Connector a and B Single Lever Type Faucet generalTwo Hands Type Faucet General TypeOutternal Filter Filter Fixation When customer uses bottled waterFilter Cleaning After installing water filter Replacement of water filterHow to Control the Amount of Water Supplied to Icemaker Confirm the amount of water supplied to the icemakerDoor Alarm Buzzer Mute Mode Display Power saving ModeMicom Function Monitor PanelExhibition Mode Description of FunctionOutside temperature display function LCD Back Light ControlLock function display button lock Filter condition display functionWhen ice maker does not operate smoothly Dispenser use selectionAutomatic ice maker Express FreezerControl of variable type of freezing room fan Super freezingMiracle Zone function Door opening alarm Control of M/C room fan motorDoors of freezing Or home barSequential operation of built-in product Failure Diagnosis Function Mode Operation Contents Remarks Test FunctionTest Mode 1 Status LCD Test Mode 2 Status LCD Function of dispenser and water dispenser built-inPower circuit Explation for Micom CircuitExplanation for PWB circuit GR-P227/L227GR-P227/L227/P257/L257 Reset circuitOscillation circuit Load/dispenser operation, door opening circuit Load Driving CircuitLever Switch sensing circuit Measuring part Dispenser operation circuitDoor opening sensing circuit Temperature sensing circuit Short OpenSeparation Connection Status Application Standard Switch entry circuitOption designation circuit model separation function Stepping motor operation circuit Fan motor driving circuit freezer, mechanical area +5 C +9F 33 k Ω 56 k Ω JCR1 Main PCB Sensor resistance characteristics table Miracle Zone Stepping Motor / Display Operation Principle Harvest Mode Icemaking ModeFill/Park Position Water supply amount TableStage Items Indicator Remarks Defect diagnosis functionCircuit Trouble Shooting Trouble DiagnosisNot performed Evaporator by heating as Refrigeration Refrigeration Residual Refrigeration No cooling air circulation Is weak Fan does not work Recess Sounds Compressor compartment operating sounds Bad soldering Bad rivet contact Short Structure Door foam Appearance Sag Faults PowerProblems Causes Checks Measures Remarks Problems Causes Checks MeasuresTemperature Cooling Disconnected from the motor Refer to fan motor disassembly Measures Remarks Problems CausesDefrosting failure Remove the parts and replace it Icing Discharging port of cooling air Sound Click Contraction of evaporator Sources Sound Burping It happens when refrigerant expands Odor Problems Symptom Causes Checks Measures Remarks MicomDriving circuits Motor damper Replace door switch Trouble Diagnosis Cooling Cycle Heavy Repair Items Unit Standards Purposes RemarksProcess Contents Tools Summary Of Heavy RepairPrecautions During Heavy Repair Items PrecautionsWhen replacing a drier When replacing a compressorPractical Work For Heavy Repair Inserting a capillary tubePipe Connection Vacuum SequenceCharging sequence Calculation of amount of refrigerant chargedStandard Regulations For Heavy Repair 12-0mmEurope & CIS / America Brazing Reference DrawingsAsia / Middle-East Africa Problems Checks and Measures Explain the principles of temperature changeSound depends on the installation location Explain general principles of soundsExplain the procedure and principles of ice maker operation Explain the flow of refrigerantExplain the characteriistics of moving parts Explain the principles of water supplied to dispenserMeasures for Symptoms on Temperature Check the temperature control button and set at strong Odor and FrostExplain the basic principles of food odor Explain the basic principles of frost formationOthers HOW to Disassemble and Assemble Remove a freezer doorHandle InsertTubeLineColletClip Assembly COVER, Dispenser Exploded View Ref No. GR-P227/GR-P257 Optional partRef No. GR-L227/GR-L257 Freezer Compartment Refrigerator Compartment Optional partMachine Compartment ICE & Water Part Dispenser Part No JD8999A