LG Electronics LW1500PRY3, HB1803R ElectrIc Parts, Possible Trouble Unit does not operate

Page 35

Troubleshooting Guide

ElectrIc Parts

Possible Trouble 1

The unit does not operate.

 

 

Is the

Trans input power AC 115V? NO (208/230V for LWL1230WAL)

YES

Check the Fuse.

Check the wiring diagram.

Is the Trans output power

NO

Is the Trans. output shorted?

NO

 

 

• Check the AC

 

 

 

 

 

 

 

 

 

 

about AC 14V?

 

 

 

 

 

 

 

PCB pattern.

 

 

YES

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Replace the Trans.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is output Voltage of IC01D

NO

 

 

 

 

 

 

• Replace D02D~D05D.

 

 

 

 

 

 

 

• Replace IC01D.

 

DC 12V?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

Is output Voltage of IC02D

 

 

 

 

 

 

• Replace IC02D.

 

 

 

 

 

 

 

 

 

DC 5V?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is the reset circuit OK?

NO

(The No.14 of Micom is 5V.)

 

YES

Is the

connection between NO AC and DC

OK?

YES

NO

Is the voltage No.40 of Micom

DC 5V?

• Replace IC01A, C01A.

Connect connector exactly.

Check the PCB pattern.

YES

Replace AC PCB Ass'y.

Service Manual 35

Image 35
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 Select the Best Location InstallationInstallation Check How to Secure the Drain PipeWindow Requirements How to InstallWhen Using Installation Kits Installation Kits ContentsPreparation 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 ControlCabinet DisassemblyMechanical Parts Front GrilleFAN Air Guide and Turbo FanCompressor Electrical PartsShroud Overload ProtectorCapacitor Power CordEvaporator Refrigerating CycleMotor Capillary Tube Pulling Vacuum Device DiagramSegment LWC182PLMD1 Model LWP1820PDL/LWP1820PELLW1800ER/LWP1830WAL Model LWC182PLMM0/LWC212PLMM0LWC183PLMD1 Components LocationLW1500PR/LWP1830WAL LWP1820PDL/LWP1820PEL HBLG1803RSchematic 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.