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Comfort-Aire REG-123A room air conditioner Parts

Here are the diagrams and repair parts for Comfort-Aire REG-123A room air conditioner, as well as links to manuals and error code tables, if available.

Comfort-Aire REG-123A room air conditioner
By Schematic
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Browse Parts for REG-123A Room Air Conditioner

  • Lg Evaporator for Comfort-Aire REG-123A - Part 5421AR2912R

    Room a/c diagram

    Condenser

    Part #5403AR2921N

    Replaced by #5421AR2912R

    Info Icon
    Manufacturer substitution
    This part replaces 5403AR2921N. Substitute parts can look different from the original.
    In Stock
    $194.26
    6% OFF Phone Price : $206.26Info Icon
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  • Channel for Comfort-Aire REG-123A - Part 4974AR3262K

    Room a/c diagram

    Channel

    Part #4974AR3262K

    The manufacturer no longer makes this part, and there's no substitute part

  • Room Air Conditioner Display Board for Comfort-Aire REG-123A - Part 6871A20611U

    Room a/c diagram

    Room Air Conditioner Display Board

    Part #6871A20611U

    The manufacturer no longer makes this part, and there's no substitute part

  • Pcb Assembly for Comfort-Aire REG-123A - Part EBR30851601

    Room a/c diagram

    Pcb Assembly

    Part #EBR30851601

    The manufacturer no longer makes this part, and there's no substitute part

  • Room Air Conditioner Condenser Fan Blade for Comfort-Aire REG-123A - Part 5900AR1173A

    Room a/c diagram

    Room Air Conditioner Condenser Fan Blade

    Part #5900AR1173A

    The manufacturer no longer makes this part, and there's no substitute part

  • Comfort-aire Tube for Comfort-Aire REG-123A - Part 5211A21448H

    Room a/c diagram

    Comfort-aire Tube

    Part #5211A21448H

    The manufacturer no longer makes this part, and there's no substitute part

  • Damper for Comfort-Aire REG-123A - Part 4900AR7024B

    Room a/c diagram

    Damper

    Part #4900AR7024B

    The manufacturer no longer makes this part, and there's no substitute part

  • Grille Assembly, Front (indoor) for Comfort-Aire REG-123A - Part 3531A20020E

    Room a/c diagram

    Grille Assembly, Front (indoor)

    Part #3531A20020E

    The manufacturer no longer makes this part, and there's no substitute part

  • Comfort-aire Cabinet for Comfort-Aire REG-123A - Part 3091A10032V

    Room a/c diagram

    Comfort-aire Cabinet

    Part #3091A10032V

    The manufacturer no longer makes this part, and there's no substitute part

  • Control Case Assembly for Comfort-Aire REG-123A - Part 4995A23005Q

    Room a/c diagram

    Control Case Assembly

    Part #4995A23005Q

    The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your room air conditioners

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Why is water leaking into the house from my window air conditioner?

Main causes: clogged condensate drain, air conditioner not leveled properly, leaky window air seals …

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Why your window AC compressor is not turning on?

Main causes: bad compressor, lack of refrigerant, bad compressor start relay, electronic control board failure…

Read more

Why won't my window air conditioner start?

Main causes: lack of electrical power, bad electronic control board, wiring failure, bad temperature sensor…

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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 isn’t my air conditioner cooling well?

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

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Why does my window air conditioner's compressor hum but not work?

Main causes: turning the air conditioner off and the back on too quickly, dirty or restricted condenser coil, compressor…

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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 are my window air conditioner's evaporator fins iced up?

Main causes: dirty air filter, air conditioner is too small for the room, temperature set too cold, control failure…

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Why won't water draining from my window air conditioner?

Main causes: clogged drain hole, air conditioner not leveled properly…

Read more

Effective articles & videos to help repair your room air conditioners

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Tapping into a new feature in the Search Bar on Sears PartsDirect

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How to tell if a fuse is blown

Learn how to tell whether a fuse is blown…

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Keeping your smart appliances secure from hackers

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Parts & More

Parts
15p50002a17 1550002A17No Long Ava 1573233C15PCB Assembly 131-0-4001-05580Home Electronics Ornamental Plate 238240900Oil Seal 1723758Home Electronics Diode 213439Mounting Bracket MAZ61672102Fuel Tank Assembly 532433009Range Screw, #8-16 x 0.595-in W10647533Refrigerator Control Panel Inlay PR100008Switch 6209-3021Telescopic A 150110400Door Panel W111673305 Pin Socket WB17X5078Prc A302K7080HPRRefrigerator Shelf RF-6350-59Self Tapping 110430Arm Clip 141-2-873T-01800Refrigerator Wire Harness 4389204PCB Assembly BN94-06610K