Carrier
Air Handler

Model # 40BNQ018301 Official Carrier air handler

Here are the diagrams and repair parts for Official Carrier 40BNQ018301 air handler, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 29 parts  |

Fan Motor 51301323700
#6

Air handler diagram

Fan motor

Part #51301323700

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

Bracket Unit Mounting 51304478800
#1

Air handler diagram

Bracket unit mounting

Part #51304478800

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

Svc Cover 51300908200
#18

Air handler diagram

Svc cover

Part #51300908200

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

Ext. Cable 51308971920
#28

Air handler diagram

Ext. cable

Part #51308971920

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

Frame 51308443310
#17

Air handler diagram

Frame

Part #51308443310

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

Filter 51301030400
#22

Air handler diagram

Filter

Part #51301030400

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

Motor 51301300400
#9

Air handler diagram

Motor

Part #51301300400

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

Cntrl Mtr 51303512800
#14

Air handler diagram

Cntrl mtr

Part #51303512800

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

Drain Hose 51202360500
#23

Air handler diagram

Drain hose

Part #51202360500

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

Circuit Board 51303518400
#15

Air handler diagram

Circuit board

Part #51303518400

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

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Repair guides for top-mount refrigerators

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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
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How to replace the compressor run capacitor in a top-freezer refrigerator

How to replace the compressor run capacitor in a top-freezer refrigerator

The run capacitor sends electric current to the compressor motor to help the motor run efficiently. Replace the run capa…

Repair difficulty
Time required
 15 minutes or less
How to replace the defrost thermistor in a top-freezer refrigerator

How to replace the defrost thermistor in a top-freezer refrigerator

The defrost thermistor attaches to the evaporator coil and measures the evaporator coil temperature during defrost.…

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

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