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LG
Heating & Cooling Combined Unit

Model # LP123CD3A Official LG air conditioner

Here are the diagrams and repair parts for Official LG LP123CD3A air conditioner, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 56 parts  |
Room Air Conditioner Evaporator Fan Blade 5901A20050A
#9011

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Room air conditioner evaporator fan blade

Part #5901A20050A

$58.19 | 
9% OFF Phone Price : $64.19
In Stock
Room Air Conditioner Control Panel Overlay 3831A20145E
#8310

Exploded view parts diagram

Room air conditioner control panel overlay

Part #3831A20145E

$27.47 | 
18% OFF Phone Price : $33.47
In Stock
Room Air Conditioner Front Grille Assembly 3531A10149D
#5312

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Room air conditioner front grille assembly

Part #3531A10149D

Replaced by #3531A10149J

?
Manufacturer substitution
This part replaces 3531A10149D. Substitute parts can look different from the original.
$105.92
In Stock
Room Air Conditioner Blower Wheel Bearing 4280A20004A
#2800

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Room air conditioner blower wheel bearing

Part #4280A20004A

Replaced by #4280A20004M

?
Manufacturer substitution
This part replaces 4280A20004A. Substitute parts can look different from the original.
This item is not returnable
$5.58 | 
15% OFF Phone Price : $6.58
In Stock
Thermistor A 6323A20006A
#230A

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Thermistor a

Part #6323A20006A

Replaced by #EBG61106833

?
Manufacturer substitution
This part replaces 6323A20006A. Substitute parts can look different from the original.
$14.51
In Stock
Damper 5040A30032A
#W504

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Damper

Part #5040A30032A

This item is not returnable
$4.51
In Stock
Shroud 4999A20004C
#9990

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Shroud

Part #4999A20004C

$35.96
In Stock
Room Air Conditioner Power Control Board 6871A00086B
#711D

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Room air conditioner power control board

Part #6871A00086B

$23.07
In Stock
Lg Tube Assembly 5211A24129P
#2113

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Lg tube assembly

Part #5211A24129P

$44.58
In Stock
Supporter 4800A20002D
#8000

Exploded view parts diagram

Supporter

Part #4800A20002D

$10.60
In Stock

Most common symptoms to help you fix your heating & cooling combined units

Choose a symptom to see related heating and air conditioning system repairs.

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Why is my furnace not blowing hot enough?

Thermostat problem, clogged air filter, burner failure…

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Why isn’t my air conditioner cooling well?

Dirty air filter, clogged condenser coils, low refrigerant charge, faulty compressor…

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Why isn’t my air conditioner cooling?

Thermostat problems, bad compressor/condenser fan capacitor, lack of refrigerant, failed compressor…

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Why won’t my furnace burners won’t stay lit?

Dirty flame sensor, failed flame sensor, damaged burner, bad high limit switch…

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Why won't my air conditioner turn on?

Main causes: errant thermostat settings, lack of electrical power, clogged drain line, wiring failure, control failure.…

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Why won't my furnace turn on?

Main causes: Errant thermostat settings, lack of power, bad interlock switches, lack of exhaust ventilation, wiring fail…

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Most common repair guides to help fix your heating & cooling combined units

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How to unclog the air conditioner drain line

How to unclog the air conditioner drain line

The condensate drain line for your central air conditioner can clog with mold and mildew. Water will back up and start d…

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Repair difficulty
Time required
 15 minutes or less
How to replace the furnace flame sensor

How to replace the furnace flame sensor

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How to replace a heating and air conditioning system thermostat

How to replace a heating and air conditioning system thermostat

The control thermostat for your HVAC system can stop working. This repair guide shows how to replace it.…

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Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your heating & cooling combined units

Use the advice and tips in these articles and videos to get the most out of your HVAC system.

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Maintaining your air conditioner

Maintaining your air conditioner

Learn how to maintain your central air conditioner to keep it running smoothly all summer long.…

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How to prevent the 2 most common AC failures from ruining your summer

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