Carrier
Air Handler

Model # 40QNC018301 Official Carrier air handler

Here are the diagrams and repair parts for Official Carrier 40QNC018301 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 31 parts  |

Front Panel 42KH8A30140
#29

Cabinet parts diagram

Front panel

Part #42KH8A30140

In Stock
Remote,kit 40QN660002
#30

Cabinet parts diagram

Remote,kit

Part #40QN660002

In Stock
Guard,coil 42KG8A32280
#9

Cabinet parts diagram

Guard,coil

Part #42KG8A32280

In Stock
Guard,coil 42KG8A3223A
#10

Cabinet parts diagram

Guard,coil

Part #42KG8A3223A

In Stock
Bracket Unit 42KH8M3003B
#23

Cabinet parts diagram

Bracket unit

Part #42KH8M3003B

In Stock
Room Air Conditioner Blower Wheel 42KGAA2020F
#5

Cabinet parts diagram

Room air conditioner blower wheel

Part #42KGAA2020F

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

Extension Rod 42KP8A32310
#18

Cabinet parts diagram

Extension rod

Part #42KP8A32310

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

Body Assembly 42KH8M2002A
#1

Cabinet parts diagram

Body assembly

Part #42KH8M2002A

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

Drain Pan 42KPWX2010C
#14

Cabinet parts diagram

Drain pan

Part #42KPWX2010C

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

Louver 42KP8A3232B
#15

Cabinet parts diagram

Louver

Part #42KP8A3232B

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.…