Model # LP123HD3A Official LG package unit

Here are the diagrams and repair parts for Official LG LP123HD3A package unit, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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Showing 10 of 57 parts |

Room Air Conditioner Transformer 6170A20012A

#261704

Package unit diagram

Room air conditioner transformer

Part #6170A20012A

$59.22 |

9% OFF Phone Price : $65.22

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Room Air Conditioner Control Panel 3720A20710A

#237200

Package unit diagram

Room air conditioner control panel

Part #3720A20710A

$27.47 |

18% OFF Phone Price : $33.47

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Room Air Conditioner Condenser Fan Blade 5901A20051A

#559011

Package unit diagram

Room air conditioner condenser fan blade

Part #5901A20051A

$29.98 |

17% OFF Phone Price : $35.98

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Central Air Conditioner Run Capacitor 3H00660C

#W0CZZA

Package unit diagram

Central air conditioner run capacitor

Part #3H00660C

$24.09

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#552206

Package unit diagram

Valve

Part #5220A30006A

$46.60

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#352116

Package unit diagram

Tube assembly

Part #5211A21791F

$76.99

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Room Air Conditioner Control Panel Overlay 3831A20145E

#238310

Package unit diagram

Room air conditioner control panel overlay

Part #3831A20145E

$27.47 |

18% OFF Phone Price : $33.47

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#352115

Package unit diagram

Tube assembly

Part #5211A29905F

$178.49

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#552112

Package unit diagram

Tube assy,co

Part #5211A20678F

$27.47

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#W52106

Package unit diagram

Tube evaporator

Part #5210A26718F

$23.99

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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…

Why isn’t my air conditioner cooling well?

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

Why isn’t my air conditioner cooling?

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

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

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

Why won't my air conditioner turn on?

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

Why won't my furnace turn on?

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

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

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

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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…

Repair difficulty

Time required

15 minutes or less

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 sta…

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

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

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

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

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Top questions about Sears and Sears PartsDirect

Model # LP123HD3A Official LG package unit

Model diagram and schematic

SEARCH WITHIN THIS MODEL

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

Why is my furnace not blowing hot enough?

Why isn’t my air conditioner cooling well?

Why isn’t my air conditioner cooling?

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

Why won't my air conditioner turn on?

Why won't my furnace turn on?

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

How to unclog the air conditioner drain line

How to replace the furnace flame sensor

How to replace a heating and air conditioning system thermostat

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

Maintaining your air conditioner

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

Top questions about Sears and Sears PartsDirect

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