LG Electronics LRTN22310, LRTN19310 service manual Complaint Symptom Possible Causes Solution

Page 24

TROUBLESHOOTING

7-4

COMPLAINT

 

SYMPTOM

 

POSSIBLE CAUSES

 

SOLUTION

 

 

 

 

 

 

 

 

 

Electronic Display

1.

No Display at all

1.

Supply voltage not within specifications

1.

Check supply voltage to refrigerator

 

not operating

 

 

2.

Open in wiring harness from PWB board

2.

Check wiring and connectors to PWB board

 

correctly

 

 

3.

Open in door monitor switch circuit

3.

Check door monitor circuit

 

 

 

 

 

 

 

 

 

 

2.

Partial or

1.

Supply voltage not within specifications

1.

Check supply voltage to refrigerator

 

 

 

abnormal display

2.

Open in wiring harness from PWB board

2.

Check wiring and connectors to and from PWB

 

 

 

 

 

 

 

board

 

 

 

 

 

 

 

 

 

Not Cooling

1.

Display on but

1.

Compressor not operating

1.

Check for compressor operation by using the test

 

 

 

compressor not

2.

Open in compressor circuit

 

key on main circuit board

-

 

 

operating

 

 

2.

Check for open on OLP, PTC, compressor,

24

 

 

 

 

 

 

wiring, etc.

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Not cold enough

2.

Display on

1.

Condenser fan motor not operating

1.

Check condenser fan motor and wiring circuit

 

 

 

compressor is

2.

Condenser coils blocked

2.

Check air flow across condenser

 

 

 

operating

3.

Evaporator fan motor not operating

3.

Check evaporator fan motor and wiring circuit

 

 

 

 

4.

Damper not opening or internal air flow blocked

4.

Check damper motor circuit

 

 

 

 

5.

Sensor not operating properly

5.

Check refrigerator and freezer sensors

 

 

 

 

6.

Door not sealing

6.

Check for proper door esal

 

 

 

 

7.

Evaporator Frosted up

7.

Check defrost circuit components

 

 

 

 

8.

Sealed System related problem

 

 

 

 

 

 

 

 

 

 

 

Not defrosting

1.

Frosted up in

1.

Open in defrost circuit

1.

Check defrost heater and circuit using Test Key

 

 

 

Freeer

2.

Defrost sensor not operating correctly

2.

Check sensor

 

 

 

 

3.

Defrost drain clogged

3.

Check drain

 

 

 

 

 

 

 

 

 

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Page 23 Page 25
Contents Refrigerator Contents Safety PrecautionsSpecifications Items SpecificationsRef. No Cuft / 22Cuft Parts Identification Ice BinFreezer Shelf RackDisassembly Door SwitchDoor Freezer DoorDefrost Control Assembly FAN and FAN MotorLamp Control BOX-REFRIGERATORAdjustment CompressorPTC-STARTER OLP Overload Protector To Remove the Cover PTCDefinition of OLP Role of the OLPCircuit Diagram Good ModelTroubleshooting Compressor and Electric ComponentsPTC and OLP Other Electric Components Not cooling at allCompressor doesnt run Check for open short or Cause Poor cooling performanceService Diagnosis Chart Complaint Points to be Checked RemedyState Temperature Remarks Unit Evaporator Compressor Troubleshooting ChartRefrigerating Cycle CauseItems Unit Standards Purposes Remarks General Control of Refrigerating CycleFunction Freezer FANDefrost Heater OFFDefect Signs Contents Remarks Mode Manipulation Contents Remarks Power Circuit PCB FunctionLoad / Buzzer Drive & Open Door Detection Circuit Load Drive Condition CheckOpen Door Circuit Door Monitor Circuit Temperature Sensor Circuit Resistance Specification of Sensor + 30 ˚C 86 FComplaint Symptom Possible Causes Solution Main PWB Assembly Exploded View & Replacement Parts List Case PartsFreezer Parts Refrigerator Parts Door Parts On some modelsNo JL8015A

LRTN19310, LRTN22310 specifications

LG Electronics has consistently been at the forefront of home appliance innovation, and the LRTN22310 and LRTN19310 refrigerator models exemplify this commitment. Both models are designed to cater to the needs of modern consumers, combining functionality with cutting-edge technology.

The LG LRTN22310 is a 22 cubic feet top-freezer refrigerator that stands out with its sleek design and user-friendly features. It includes energy-efficient LED lighting that brightens every corner, allowing users to easily find what they need. The Smart Inverter Compressor technology is a key highlight, adjusting cooling power based on the amount of food stored, which leads to significant energy savings and quieter operation.

In addition to its energy efficiency, the LRTN22310 features a multi-air flow system that ensures consistent temperatures throughout the refrigerator, keeping food fresher for longer. Its spacious interior with adjustable shelves allows for flexible storage solutions, accommodating large items with ease. The model also offers a humidity-controlled crisper, ideal for preserving fruits and vegetables at their peak freshness.

On the other hand, the LG LRTN19310, with 19 cubic feet of storage capacity, is a more compact option that does not compromise on efficiency or performance. This model also incorporates the Smart Inverter Compressor, providing optimal cooling without excessive noise. The LED interior lighting and multi-air flow technology are consistent features, ensuring food stays fresh and visible.

The LRTN19310’s sleek shelving system is designed to maximize storage space, while its easy-access freezer compartment allows for convenient organization of frozen items. The refrigerator's stylish exterior adds to its appeal, making it an attractive addition to any kitchen.

Both models highlight LG's commitment to sustainability and innovation. Equipped with smart technologies, such as energy-efficient compressors and advanced cooling systems, they provide consumers with eco-friendly choices. The combination of practical features, modern aesthetics, and advanced technology makes the LG LRTN22310 and LRTN19310 ideal selections for anyone looking to upgrade their kitchen appliances.

In conclusion, the LG LRTN22310 and LRTN19310 refrigerators not only meet the diverse demands of today’s households but also reflect LG’s dedication to quality and innovation in home appliances. Their blend of efficiency, style, and advanced features supports the modern lifestyle, ensuring food is kept fresh while minimizing energy consumption.
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