Carrier
Air Handler

Model # 40QNQ018301 Official Carrier air handler

Here are the diagrams and repair parts for Official Carrier 40QNQ018301 air handler, 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.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 32 parts  |

Contrl,box 40QN660005
#11

Cabinet assy diagram

Contrl,box

Part #40QN660005

In Stock
Remote,kit 40QN660002
#30

Cabinet assy diagram

Remote,kit

Part #40QN660002

In Stock
Front Panel 42KH8A30140
#29

Cabinet assy diagram

Front panel

Part #42KH8A30140

In Stock
Guard,coil 42KG8A3223A
#10

Cabinet assy diagram

Guard,coil

Part #42KG8A3223A

In Stock
Bracket Unit 42KH8M3003B
#23

Cabinet assy diagram

Bracket unit

Part #42KH8M3003B

In Stock
Guard,coil 42KG8A32280
#9

Cabinet assy diagram

Guard,coil

Part #42KG8A32280

In Stock
Clip,coil SW711A4142B
#12

Cabinet assy diagram

Clip,coil

Part #SW711A4142B

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

Motor,blwr PMO01AG2590
#2

Cabinet assy diagram

Motor,blwr

Part #PMO01AG2590

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

Drain Tube 42KP8A3015D
#20

Cabinet assy diagram

Drain tube

Part #42KP8A3015D

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

Body Assembly 42KH8M2002A
#1

Cabinet assy diagram

Body assembly

Part #42KH8M2002A

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

Symptoms for top-mount refrigerators

Main causes: frozen or clogged defrost drain tube, cracked water system tubing…

Repair guides for top-mount refrigerators

How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty
Time required
 15 minutes or less
How to replace the evaporator fan motor in a top-freezer refrigerator

How to replace the evaporator fan motor in a top-freezer refrigerator

The evaporator fan motor blows air across the evaporator coils and through the refrigerator cabinet for cooling. Replace…

Repair difficulty
Time required
 15 minutes or less
How to replace the compressor start relay in a top-freezer refrigerator

How to replace the compressor start relay in a top-freezer refrigerator

The compressor start relay starts the compressor and shuts it off if the motor overheats. Replace the start relay if it'…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your air handlers

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

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

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