Carrier
Central Air Conditioner

Model #38TRA042 SERIES300 Official Carrier condensing unit

Here are the diagrams and repair parts for Carrier 38TRA042-SERIES300 condensing unit, 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.

Installation guideOwner’s manual

Showing 10 of 46 parts

Nameplate#11

Outside view 2 Diagram

Nameplate

Part #312250-402
This item is not returnable
In Stock
$6.44
Central Air Conditioner Capacitor Strap#34

Fan/control asy Diagram

Central air conditioner capacitor strap

Part #317739-302
This item is not returnable
In Stock
$2.56
Switch#NI

Outside view 1 Diagram

Switch

Part #KAALP0101LPS
In Stock
$76.00
Central Air Conditioner Start Capacitor#NI

Outside view 1 Diagram

In Stock
$26.34
Valve Cap#51A

Outside view 2 Diagram

Valve cap

Part #EN99ZF028
This item is not returnable
In Stock
$7.04
Grommet#15

Outside view 2 Diagram

Grommet

Part #KA56GR140
This item is not returnable
In Stock
$2.16
Panel#5

Outside view 1 Diagram

Panel

Part #312226-760
In Stock
$44.49
Central Air Conditioner Condenser Fan Grille#7

Outside view 1 Diagram

In Stock
$199.19 | 
5% OFF 
Phone Price: $209.19
Capacitor#32

Fan/control asy Diagram

Capacitor

Part #P291-3574RS
In Stock
$17.86
Central Air Conditioner Condenser Fan Motor#50

Fan/control asy Diagram

In Stock
$491.71

Articles and videos common to all central air conditioners

November 30, 2022

2023 HVAC regulation changes and how they may affect you

By Lyle Weischwill

Find out how new DOE standards going into effect in 2023 can affect you and what you need to do.

October 24, 2022

Easy DIY appliance repairs that anyone can do

By Lyle Weischwill

Get advice on simple DIY fixes for appliances that you can safely do on your own.

August 5, 2022

Introducing new technical repair content that we’re developing for the Sears Technical Institute

By Lyle Weischwill

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.