Mitsubishi
Air Handler

Model # PCA-A42GA1 Official Mitsubishi air handler

Here are the diagrams and repair parts for Official Mitsubishi PCA-A42GA1 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 50 parts  |

Plate T7WE04665
#11

Heat exchanger diagram

Plate

Part #T7WE04665

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

Panel R0130J669
#9

Heat exchanger diagram

Panel

Part #R0130J669

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

Gv Assembly R0138J086
#21

Heat exchanger diagram

Gv assembly

Part #R0138J086

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

Block T7WE41716
#3

Electrical parts diagram

Block

Part #T7WE41716

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

Plug R0118J524
#10

Structural parts diagram

Plug

Part #R0118J524

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

Socket R0118J523
#25

Heat exchanger diagram

Socket

Part #R0118J523

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

Panel T7WE09651
#16

Heat exchanger diagram

Panel

Part #T7WE09651

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

Cord T7WA01305
#7

Electrical parts diagram

Cord

Part #T7WA01305

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

Joint R01800116
#4

Structural parts diagram

Joint

Part #R01800116

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

Catch R0119J054
#6

Heat exchanger diagram

Catch

Part #R0119J054

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.…