LG
Heating & Cooling Combined Unit

Model #LP126CD3A Official LG air conditioner

Here are the diagrams and repair parts for LG LP126CD3A air conditioner, as well as links to manuals and error code tables, if available.

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Owner’s manual

Showing 10 of 59 parts

Room Air Conditioner Control Panel Overlay#8310

Exploded view parts Diagram

In Stock
$25.92 | 
16% OFF 
Phone Price: $30.92
Base Indicator Assembly#1304

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Base indicator assembly

Part #AAN33345813
In Stock
$120.12
Cover Asy,cn#5510

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Cover asy,cn

Part #3551A20062G
In Stock
$14.51
Cover#500B

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Cover

Part #3550A30111A
This item is not returnable
In Stock
$4.51
Shroud#9990

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Shroud

Part #4999A20004C
In Stock
$35.96
Transformer#1704

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Transformer

Part #6170A20012B
In Stock
$71.93
Room Air Conditioner Heater Assembly#3000

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In Stock
$215.85 | 
$10.00 OFF 
Phone Price: $225.85
Motor Asy,ac#5468

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Motor asy,ac

Part #4681A20200C
In Stock
$164.90
Room Air Conditioner Compressor Grommet#5501

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Room air conditioner compressor grommet

Part #4H00982E
This item is not returnable
In Stock
$3.46 | 
22% OFF 
Phone Price: $4.46
Room Air Conditioner Fan Bracket#600B

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In Stock
$18.83

Symptoms common to all heating & cooling combined units

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

Thermostat problem, clogged air filter, burner failure
Dirty air filter, clogged condenser coils, low refrigerant charge, faulty compressor
Main causes: errant thermostat settings, lack of electrical power, clogged drain line, wiring failure, control failure.
Main causes: Errant thermostat settings, lack of power, bad interlock switches, lack of exhaust ventilation, wiring failures.
Thermostat problems, bad compressor/condenser fan capacitor, lack of refrigerant, failed compressor
Dirty flame sensor, failed flame sensor, damaged burner, bad high limit switch

Repair guides common to all heating & cooling combined units

These step-by-step repair guides will help you safely fix what’s broken on your HVAC system.

How to replace the furnace flame sensor

The flame sensor detects when furnace burner flames are lit. You may need to replace the flame sensor if flames only stay on for a few seconds.

Repair difficulty
Time required
 15 minutes or less
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 dripping below the inside air conditioner unit. Follow the steps in this guide to unclog the drain pipe.

Repair difficulty
Time required
 15 minutes or less
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.

Repair difficulty
Time required
 30 minutes or less

Articles and videos common to all 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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Should I replace my gas furnace with an electric heat pump?

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

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February 22, 2022

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