LG Electronics LWP1820PEL Troubleshooting Guide, Unit runs but poor cooling, Ineffective Cooling

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Troubleshooting Guide

Troubleshooting Guide

In general, possible trouble is classified in two kinds.

The one is called Starting Failure which is caused from an electrical defect, and the other is ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application.

Unit runs but poor cooling.

Ineffective Cooling

Check cold air circulation for smooth flow.

Dirty indoor coil (Heat exchanger)

Malfunction of fan

Clogged of air filter.

Obstruction at air outlet

Correct above trouble

Check clogging in refrigera- tion circuit.

Repair clogging in refrigera- tion circuit.

Check outdoor coil

(heat exchanger) & the fan operation.

Check gas leakage.

Repair gas leak.

Replacement of unit if the unit is beyond repair.

Satisfactory operation with temperature difference of inlet & outlet air ; 44~50° F(7~10° C)

Check heat load increase.

Clean condenser.

Not on separate circuit.

Check inside gas pressure.

Adjusting of refrigerant charged.

Malfunction of compressor.

Replacement of compressor.

Service Manual 29

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Contents LG Room Air Conditioner Table of Contents Be sure not to do Be sure to follow the instruction Safety PrecautionsSharp edges Outside Dimensions DimensionsSymbols Used in this Manual Items Product SpecificationsModels Installation Check InstallationHow to Secure the Drain Pipe Select the Best LocationWhen Using Installation Kits How to InstallInstallation Kits Contents Window RequirementsPreparation of Chassis Suggested tool RequirementsSCREWDRIVER+, -, RULER, KNIFE, HAMMER, PENCIL, Level Cabinet Installation Window installation of room air conditioner is now completed Function of Controls Display Remote ControlOperation LOW MED HighDisplay Remocon Signal Receiver Auto SwingSignal Receiver Auto Swing LWP1820PDL/PEL Display Remote ControlMechanical Parts DisassemblyFront Grille CabinetFAN Air Guide and Turbo FanShroud Electrical PartsOverload Protector CompressorCapacitor Power CordEvaporator Refrigerating CycleMotor Capillary Tube Pulling Vacuum Device DiagramSegment LW1800ER/LWP1830WAL Model LWP1820PDL/LWP1820PELModel LWC182PLMM0/LWC212PLMM0 LWC182PLMD1LW1500PR/LWP1830WAL Components LocationLWP1820PDL/LWP1820PEL HBLG1803R LWC183PLMD1Schematic Diagram Piping System Troubleshooting GuideIneffective Cooling Troubleshooting GuideUnit runs but poor cooling Fails to Start Possible Trouble Unit does not operate Electrical Parts Troubleshooting GuidePossible Trouble Possible Trouble Function of Energy Saver does not operate Possible Trouble FAN does not operatePossible Trouble It displays abnormally on DC PCB Ass’y ElectrIc Parts Check the wiring Diagram Replace AC PCB Assy Possible Trouble Remote controller does not operate Replace IC03G Complaint Cause Remedy Troubleshooting GuideTroubleshooting Guide Cooling Model Exploded ViewHeating Model LW1800PRZ3 Description RemarkDescription Remark LWP1820PDL Replacement Parts ListLW1804ER Discharge Tube LW1800PR LW1800ERLWP1820PEL LWC183PLMDI Description Remark HBLG183R No A20140E

LWC183PLMD1, LW1800ERZ3, LWP1820PEL, LW1800PR, LWC182PLMM0 specifications

LG Electronics offers a wide range of air conditioning units designed to enhance indoor comfort with innovative features and technologies. Among these, the models LW1500PRY3, LWC212PLMM0, LW1800PRZ3, LW1804ER, and LW1500PR stand out for their effectiveness and reliability.

The LG LW1500PRY3 is a window air conditioner with a cooling capacity of 14,000 BTUs, ideal for large rooms up to 700 square feet. This model features a user-friendly LED display and a remote control for convenient temperature adjustments. One of its key characteristics is the "Energy Saver" mode, which conserves energy when the unit is not in use, contributing to lower utility bills. The LW1500PRY3 also includes a 3-speed fan and a dehumidification function, removing up to 3.5 pints of moisture from the air per hour.

Next, the LWC212PLMM0 serves as an all-in-one heat pump, perfect for year-round comfort. It delivers 21,000 BTUs of cooling power and is designed for energy efficiency, receiving an Energy Efficiency Rating (EER) that meets or exceeds industry standards. This model incorporates advanced inverter technology, which allows for quieter operation and precise temperature control. Its sleek, modern design fits well in any room, making it both a functional and aesthetic addition to a home.

The LW1800PRZ3 is another window unit that offers 18,000 BTUs of cooling, capable of managing spaces up to 1,000 square feet. This model also features Wi-Fi connectivity, allowing users to control their air conditioner via a smartphone app, enhancing convenience and energy management. The energy-saver mode and multiple cooling and fan speeds offer customizable comfort in a variety of conditions.

The LW1804ER, with its compact design, delivers effective cooling for medium-sized rooms, boasting an 18,000 BTU capacity as well. This unit is equipped with a convenient LED display, making it easy to monitor and adjust settings. Its quiet operation makes it suitable for bedrooms and living areas, allowing for a peaceful environment while providing effective cooling relief on hot days.

Finally, the LW1500PR is a reliable and efficient air conditioning option with a cooling capacity of 15,000 BTUs, suitable for rooms up to 700 square feet. With a focus on energy efficiency and user-friendly design, it includes adjustable air direction and a programmable timer, making it easy to set routines and maintain comfort.

Together, these LG Electronics models represent a commitment to advanced air conditioning technology, ensuring reliable performance, energy efficiency, and enhanced user comfort across various spaces. Each model features high-quality components and thoughtful design, meeting the diverse needs of consumers in today's marketplace.