Carrier
Air Handler

Model #FA4BNF042000AAAA Official Carrier fan coil

Here are the diagrams and repair parts for Carrier FA4BNF042000AAAA fan coil, 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 64 parts

Central Air Conditioner Air Handler Blower Motor Relay (replaces HN61PC003)#NI

Cabinet assy 1 Diagram

In Stock
$28.00 | 
15% OFF 
Phone Price: $33.00
Sw Temp Act#NI

Cabinet assy 1 Diagram

Sw temp act

Part #HH19ZA965
In Stock
$39.35
Central Air Conditioner Air Handler Blower Wheel#45C

Cabinet assy 2 Diagram

Blower wheel

Part #LA22LA034
Replaced by #LA22LA-034
?
Manufacturer substitution
This part replaces LA22LA034. Substitute parts can look different from the original.
In Stock
$160.26
Furnace Temperature Limit Switch#NI

Cabinet assy 1 Diagram

In Stock
$57.39 | 
8% OFF 
Phone Price: $62.39
Ckt Brkr#NI

Cabinet assy 1 Diagram

Ckt brkr

Part #HH83XD261
In Stock
$100.10
Harness#NI

Cabinet assy 1 Diagram

Harness

Part #324644-701
In Stock
$18.52
Nameplate#20B

Cabinet assy 2 Diagram

Nameplate

Part #312250-406
This item is not returnable
In Stock
$4.46
Harness#NI

Cabinet assy 1 Diagram

Harness

Part #324645-701
In Stock
$36.30
Nameplate#20A

Cabinet assy 2 Diagram

Nameplate

Part #312250-409
This item is not returnable
In Stock
$2.72
Central Air Conditioner Air Handler Fan Control Board#35

Cabinet assy 1 Diagram

Central air conditioner air handler fan control board

Part #HK61EA006
This item is not returnable
In Stock
$100.89 | 
9% OFF 
Phone Price: $110.89

Articles and videos common to all air handlers

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.