LG Electronics PACKAGED TERMINAL AIR CONDITIONER/HEAT PUMP Common Problems and Solutions

Page 21

Maintenance and Service

CommonProblemsandSolutions

Troubleshooting Tips save time and money!

Review the chart below first and you may not need to call for service.

NormalOperation

•You may hear a pinging noise caused by water being picked up and thrown by the slinger fan against the condenser on rainy days or when the humidity is high. This design feature helps remove moisture and improve efficiency.

•You may hear the thermostat click when the compressor cycles on and off.

•Water will collect in the base pan during high humidity or on rainy days. The water may overflow and drip from the outdoor side of the unit.

•The fan may run even when the compressor does not.

Troubleshooting

 

COMPLAINT

CAUSE

REMEDY

 

 

 

 

 

 

 

 

■ No power

• Check voltage at outlet. Correct if none.

 

 

 

■ Power supply cord

• Check voltage to rotary switch. If none, check power

 

 

 

 

supply cord. Replace cord if circuit is open.

 

 

 

■ Rotary switch

• Check switch continuity. Refer to wiring diagram for

 

 

 

 

terminal identification. Replace switch if defective.

 

 

 

■ Wire disconnected or

• Connect wire. Refer to wiring diagram for terminal

 

 

 

connection loose

identification. Repair or replace loose terminal.

 

 

 

■ Capacitor (Discharge

• Test capacitor.

 

 

 

capacitor before testing.)

Replace if not within ±10% of manufacturer's rating.

 

 

Fan motor

 

Replace if shorted, open, or damaged.

 

 

 

• Fan blade hitting shroud or cross flow fan hitting

 

 

will not run.

■ Will not rotate

 

 

 

 

scroll. Realign assembly.

 

 

 

 

• Units using slinger ring condenser fans must have 1/4

 

 

 

 

to 5/16 inch clearance to the base. If it is hitting the

 

 

 

 

base, shim up the bottom of the fan motor with

 

 

 

 

mounting screw(s).

 

 

 

 

• Check fan motor bearings; if motor shaft will not

 

 

 

 

rotate, replace the motor.

 

 

 

 

 

 

 

 

■ Revolves on overload.

• Check voltage. See limits on this page. If not within

 

 

 

 

limits, call an electrician.

 

 

Fan motor runs

 

• Test capacitor.

 

 

 

Check bearings. Does the fan blade rotate freely?

 

 

intermittently

 

 

 

 

If not, replace fan motor.

 

 

 

 

 

 

 

 

• Pay attention to any change from high speed to low

 

 

 

 

speed. If the speed does not change, replace the

 

 

 

 

motor.

 

 

 

 

 

 

ENGLISH

Owner’s Manual 21

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Contents LG Packaged Terminal Table of Contents Installation Safety PrecautionsOperation Hold the plug by the end When gas leaks, open Do not block the inlet or outlet of air flow Service Cleaning and MaintenanceBefore Operation Preparing for OperationFeatures Symbols Used in this ManualIntroduction Sleeve and the Rear GrilleElectrical Data Electrical SafetyPlease Read Carefully Electrical SafetyHow to Install the Unit InstallationRemove the shipping screw from the ventilation door Unit InstallationControl Locations Manual ControlsVentilation Electronic Controls Function Self-DiagnosisAdditional Controls Temperature LimitingRemoving the Front Grille Additional ControlsEnergy Saver REMOTE/LOCAL ControlFront Desk Control Remote Wall ThermostatDisassembly Instructions Maintenance and Service Air Filter CleaningVent Filter Chassis DrainageOptionalCompressor / Fan Motor Cabinet FrontCommon Problems and Solutions TroubleshootingNormal Operation Fan motor noise Overload Room AIR Conditioner Voltage LimitsLG ELECTRONICS, INC

PACKAGED TERMINAL AIR CONDITIONER/HEAT PUMP specifications

LG Electronics is a leading name in the HVAC industry, well-known for its innovative solutions such as the Packaged Terminal Air Conditioner/Heat Pump (PTAC/HP). The PTAC units from LG are designed to deliver efficient heating and cooling in a compact form, making them ideal for hotels, healthcare facilities, and residential applications.

One of the main features of LG's PTAC units is their self-contained system, which allows for easy installation and maintenance. The units are designed to fit into a standard wall sleeve, which simplifies the replacement process in existing buildings. LG offers a range of models, with cooling capacities typically ranging from 7,000 to 15,000 BTU; this ensures that users can select the perfect size for their specific requirements.

Efficiency is a hallmark of LG’s PTAC models, with many units rated with high Energy Efficiency Ratios (EER) and Seasonal Energy Efficiency Ratios (SEER). This efficiency not only results in lower energy bills but also contributes to a more sustainable operation, aligning with modern environmental standards. Some advanced models feature inverter technology, which allows for variable speed control of the compressor, significantly reducing energy consumption while providing optimal comfort levels.

The PTAC units come equipped with a multi-functional remote control, allowing for convenient operation without the need to manually adjust settings. This user-friendly feature helps to improve the overall comfort experience for guests or residents. Additionally, LG’s units often include a gold fin coating on the coils to resist corrosion, ensuring longevity and reliability even in harsh environments.

A notable characteristic of LG’s PTAC/HP units is their silent operation. Designed to minimize noise disruption, these units are perfect for settings where peace and quiet are paramount, such as hotels and bedrooms. Furthermore, many models feature a "sleep mode" function, which subtly adjusts the temperature while minimizing noise during nighttime hours.

LG also prioritizes indoor air quality, integrating advanced filtration systems that help capture dust and allergens, promoting a healthier indoor environment. The units are designed to provide consistent airflow, ensuring even temperature distribution and enhancing overall comfort.

In conclusion, LG Electronics Packaged Terminal Air Conditioner/Heat Pump units represent a perfect blend of efficiency, comfort, and convenience, making them a top choice for various applications. Their self-contained design, energy-saving technologies, and user-friendly features ensure that they are suitable for a wide range of indoor climates, meeting the modern demands of energy-conscious consumers.
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