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LG LP073HD2A - User Manual

LG LP073HD2A
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P/NO : 3828A20255J
www.lg.com
http://www.lghvac.com
OWNER’S MANUAL
AIR CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
TYPE : Room Air Conditioner
ENGLISH
ESPAÑOL
FRANÇAIS

Table of Contents

Questions and Answers

  • L
    lisa81Aug 26, 2025
    What to do if my LG Air Conditioner fan motor runs intermittently?
    • M
      Mark RussellAug 26, 2025
      If the fan motor in your LG Air Conditioner runs intermittently because it revolves on overload: * Check the voltage against the specified limits. If it's not within limits, consult an electrician. * Test the capacitor. * Check the bearings. Also, verify that the fan blade rotates freely. If not, replace the fan motor. Pay attention to any change from high speed to low speed. If the speed does not change, replace the motor.
  • B
    Brenda StevensAug 31, 2025
    How to fix fan motor noise in my LG LP073HD2A?
    • A
      Angela SawyerSep 1, 2025
      To address fan motor noise in your LG Air Conditioner, consider the following: * **Grommets:** Check the grommets and replace them if they are worn or missing. * **Fan:** If the fan is cracked, out of balance, or partially missing, replace it. * **Turbo Fan:** If the turbo fan is cracked, out of balance, or partially missing, replace it. * **Loose Set Screw:** Tighten any loose set screws. * **Worn Bearings:** If knocking sounds continue when running or if the bearings are loose, replace the motor.
  • R
    rhodesjenniferNov 6, 2025
    What to do if my LG LP073HD2A is running but cooling is ineffective?
    • M
      Michele KleinNov 6, 2025
      If your LG Air Conditioner is running but not cooling effectively, there are several things you can check: * Examine the heat load increase. * Ensure smooth cold air circulation. * Inspect the outdoor coil (heat exchanger) and fan operation. * Check for gas leakage and repair it if found. * Examine the indoor coil (heat exchanger). * Check for an overloaded circuit. * Verify the fan is functioning correctly. * Check inside gas pressure. * Address any identified issues. * Check for and repair any clogging in the refrigeration circuit. * Inspect the air filter for clogging. * Look for obstructions at the air outlet. * Adjust the refrigerant charge. * Verify the compressor is working correctly. * Consider replacing the unit if it's beyond repair. * If needed, ...
  • J
    Jennifer OdonnellNov 12, 2025
    What to do if the compressor will not run, but fan motor runs in my LG LP073HD2A Air Conditioner?
    • K
      Kenneth PalmerNov 12, 2025
      If the compressor in your LG Air Conditioner isn't running while the fan motor is, here's what you can check: * **Voltage:** Ensure the voltage is within the specified limits. If not, consult an electrician. * **Wiring:** Inspect wire connections for looseness; repair or replace terminals as needed. Refer to the wiring diagram for correct wire placement. * **Rotary Switch:** Check the rotary switch for continuity, using the wiring diagram for terminal identification. Replace the switch if the circuit is open. * **Thermostat:** Verify the knob is at the coldest setting. Check the thermostat's continuity; replace it if the circuit is open. * **Capacitor:** Check the capacitor and replace if it's not within ±10% of the manufacturer's rating or if it's shorted, open, or damaged. * ...
  • S
    Sara HallNov 19, 2025
    Why won't the fan motor run on my LG LP073HD2A Air Conditioner?
    • M
      Michael ChambersNov 19, 2025
      If the fan motor on your LG Air Conditioner won't run, consider these potential causes and solutions: 1. **No Power:** Check the voltage at the outlet and correct if there is none. 2. **Power Supply Cord:** Check the voltage to the rotary switch. If there's no voltage, inspect the power supply cord. Replace the cord if the circuit is open. 3. **Rotary Switch:** Check the switch continuity. Refer to the wiring diagram for terminal identification. Replace the switch if it's defective. 4. **Wire Disconnected or Connection Loose:** Connect any disconnected wires. Refer to the wiring diagram for terminal identification. Repair or replace any loose terminals. 5. **Capacitor:** Test the capacitor. Replace it if it's not within ±10% of the manufacturer's rating or if it's shorted, open, or d...

Summary

Safety Precautions

Installation Warnings

General safety guidelines for installation, including power cord, grounding, modification, unpacking, and proximity to flammables.

Operation Warnings

Safety guidelines for operating the air conditioner, covering power cords, water, cleaning, vents, and ventilation.

Further Operation Warnings

Additional operational safety measures, including plug handling, wet operation, gas leaks, and touching metal parts.

Installation Precautions

Safety guidelines for installation, focusing on neighbor consideration and product leveling.

Additional Operation Safety

Covers pet/plant placement, airflow blockage, cleaning methods, unit stability, filter maintenance, water drainage, battery handling.

Installation Edge Caution

Caution about touching sharp edges during installation to prevent cuts or injury.

Before Operation

Preparing for Operation

Steps to prepare the unit for operation, including professional installation, proper plugging, dedicated circuits, and cord care.

Usage Guidelines

Advice on proper usage, including airflow exposure, ventilation with heating devices, and avoiding special purpose use.

Cleaning and Maintenance Procedures

Instructions for cleaning the unit safely, involving metal parts, water usage, and power disconnection.

Service Contact Information

Guidance on contacting authorized dealers for repair and maintenance services.

Introduction

Symbols Used in this Manual

Explains symbols used in the manual, alerting to electric shock, hazards, and special notes.

Unit Features and Components

Details features like grille types and shows a diagram of unit components such as air filters and deflectors.

Electrical Safety

Electrical Data and Warnings

Provides electrical specifications, warnings about test button use, and cautions regarding internal components and tamper-resistance.

Grounding and Plug Safety

Emphasizes proper grounding, warns against removing the ground prong, and advises on adapter and extension cord usage.

Installation

How to Install the Unit

Provides instructions and cautions for installing the air conditioner, including handling, sleeve preparation, and securing the unit.

Unit Installation Steps

Details the process of installing the unit, including removing the grille, securing it in the sleeve, and reinstalling the grille.

Control Locations

Manual Controls Overview

Explains the manual controls including temperature, operation mode selector, and ventilation lever with associated cautions.

Electronic Controls Explained

Details the electronic controls for fan speed, power, mode selection, timer functions, and temperature settings.

Self-Diagnosis and Error Codes

Explains the self-diagnosis function using the operation LED and lists fault codes for electrical and manual controls.

Additional Controls and Front Grille Removal

Details on removing the front grille and accessing additional controls, including temperature limiting settings.

Temperature Limiting Settings

Provides detailed temperature limiting settings via DIP switches for cooling and heating operations.

Remote, Energy Saver, and Desk Controls

Explains remote/local control, energy saver switch, and front desk control options with wiring diagrams.

Remote Wall Thermostat and Wiring

Details remote wall thermostat operation and provides wiring schematics for heat pump and straight cool units.

Disassembly and Air Direction Adjustment

Instructions for disassembling the unit, removing the front grille, and adjusting the air discharge louvers.

Maintenance and Service

Air Filter Cleaning Procedure

Step-by-step guide for cleaning the air filter, including washing and replacement advice.

Vent Filter Cleaning

Instructions for cleaning the vent filter, involving chassis removal and screw replacement.

Drainage and Chassis Maintenance

Covers drainage procedures for overflow and guidelines for cleaning the unit chassis with specific material cautions.

Component and Model-Specific Maintenance

Details maintenance for compressor/fan motor, cabinet front, and special procedures for corrosion-resistant models.

Troubleshooting Fan Motor Issues

Provides troubleshooting steps for fan motor problems like not running or running intermittently, including causes and remedies.

Troubleshooting Motor and Compressor Issues

Offers solutions for fan motor noise and scenarios where the compressor won't run but the fan motor operates.

Troubleshooting Overload, Cooling, and Noise Issues

Addresses issues like compressor overload, insufficient cooling/heating, and excessive noise with their respective causes and remedies.

LG LP073HD2A Specifications

General IconGeneral
BrandLG
ModelLP073HD2A
CategoryAir Conditioner
LanguageEnglish

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