Carrier
Room Air Conditioner

Model #51QCA209100B Official Carrier room air conditioner

Here are the diagrams and repair parts for Carrier 51QCA209100B room air conditioner, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

    Showing 10 of 119 parts

    Overload

    #11B

    All parts Diagram

    Overload

    Part #HN68GP150
    In Stock
    $27.99
    Switch

    #88

    All parts Diagram

    Switch

    Part #HH19ZA120
    In Stock
    $18.50
    Motor

    #35A

    All parts Diagram

    Motor

    Part #HC43DE234
    In Stock
    $414.62
    Switch

    #28

    All parts Diagram

    Switch

    Part #HH22UC034
    In Stock
    $111.18
    Deflector

    #47

    All parts Diagram

    Part

    Part #51CM500012
    Replaced by #51CM500012
    ?
    Manufacturer substitution
    This part replaces 51CM500012. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $3.75
    Linkage

    #50

    All parts Diagram

    Part

    Part #51CM500143
    Replaced by #51CM500143
    ?
    Manufacturer substitution
    This part replaces 51CM500143. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.74
    Spring

    #51

    All parts Diagram

    Part

    Part #51CM500632
    Replaced by #51CM500632
    ?
    Manufacturer substitution
    This part replaces 51CM500632. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.16
    CLIP, MOTOR MOUNTING

    #38

    All parts Diagram

    Clip, motor mounting

    Part #HC98TZ025

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

    Splash Guard

    #74

    All parts Diagram

    Splash guard

    Part #51CM501302

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

    Window Installation Kit

    #91

    All parts Diagram

    Window installation kit

    Part #51CM900001

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

    Articles and videos common to all room air conditioners

    August 11, 2022

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

    By Lyle Weischwill

    Learn about a new feature added to the Search Bar on Sears PartsDirect

    December 28, 2021

    How to tell if a fuse is blown

    By Lyle Weischwill

    Learn how to tell whether a fuse is blown

    September 26, 2019

    Keeping your smart appliances secure from hackers

    By Lyle Weischwill

    Find out how to protect your smart appliances from malevolent invasions by hackers.