Carrier
Air Handler

Model # 40BNQ036301 Official Carrier air handler

Here are the diagrams and repair parts for Official Carrier 40BNQ036301 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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Showing 10 of 34 parts  |

Bracket 51308443260
#31

Air handler diagram

Bracket

Part #51308443260

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

Drain Plug 51301250700
#10A

Air handler diagram

Drain plug

Part #51301250700

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

Air Filter 51301289800
#20

Air handler diagram

Air filter

Part #51301289800

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

Capacitor 51301840015
#16

Air handler diagram

Capacitor

Part #51301840015

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

Control Box Assembly 51303540600
#11

Air handler diagram

Control box assembly

Part #51303540600

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

Capacitor 51301860200
#13

Air handler diagram

Capacitor

Part #51301860200

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

Blower Wheel, Right 51302132400
#29B

Air handler diagram

Blower wheel, right

Part #51302132400

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

Svc Cover 51300905600
#18

Air handler diagram

Svc cover

Part #51300905600

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

Frame 51308501700
#17

Air handler diagram

Frame

Part #51308501700

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 door gasket in a top-freezer refrigerator

How to replace a door gasket in a top-freezer refrigerator

The door gasket seals the gap around the door to keep the cold air in and the warm air out. It’s easy to replace a worn …

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

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

The refrigerator defrost heater melts frost from the freezer’s evaporator fins. Replace the defrost heater if it doesn't…

Repair difficulty
Time required
 30 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.…