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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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Installation guide
Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 50 parts  |
Block R01E18246
#4

Electrical parts diagram

Block

Part #R01E18246

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

Leg R0118J808
#13

Heat exchanger diagram

Leg

Part #R0118J808

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

Pan T7WE31529
#11

Structural parts diagram

Pan

Part #T7WE31529

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

Box R0136J067
#15

Heat exchanger diagram

Box

Part #R0136J067

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

Plate T7WE03666
#3

Heat exchanger diagram

Plate

Part #T7WE03666

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

Fan R01E19114
#5

Structural parts diagram

Fan

Part #R01E19114

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

Fan R01E20114
#13

Structural parts diagram

Fan

Part #R01E20114

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

Gv Assembly R0138J085
#19

Heat exchanger diagram

Gv assembly

Part #R0138J085

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

Capacitor T7WE19255
#1

Electrical parts diagram

Capacitor

Part #T7WE19255

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

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

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Why won't my treadmill power up?

Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co…

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Why is my treadmill's walking belt off center?

Main causes: rear roller out of alignment, damaged walking belt, bad roller…

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Why won't my treadmill start even though the console display works?

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

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Why is my treadmill's heart rate sensor not accurate?

Main causes: faulty sensors, wiring failure, bad control console…

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Why does my treadmill have no display?

Main causes: bad control console, wiring failure, bad motor control board…

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Why does my treadmill's walking belt slow down?

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

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Why is my treadmill's walking belt slipping?

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

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Repair guides for treadmills

These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

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How to replace a treadmill motor controller

How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the…

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Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking belt

How to replace a treadmill walking belt

A worn walking belt will begin to slow down during use. If your treadmill walking belt is worn out, replace it using the…

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Repair difficulty
Time required
 45 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

Read more
Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your air handlers

Use the advice and tips in these articles and videos to get the most out of your treadmill.

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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.…

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