Central Air Conditioner

Model # MU12NN2 Official Mitsubishi air conditioner

Here are the diagrams and repair parts for Official Mitsubishi MU12NN2 air conditioner, as well as links to manuals and error code tables, if available.

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Browse Parts for
MU12NN2 Air Conditioner
Terminal E02475374
#12

A/c unit diagram

Terminal

Part #E02475374

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

Service Po E02001641
#NI

A/c unit diagram

Service po

Part #E02001641

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

Base E02270290
#7

A/c unit diagram

Base

Part #E02270290

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

Grille E02141521
#2

A/c unit diagram

Grille

Part #E02141521

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

Fusible Pl E02474642
#NI

A/c unit diagram

Fusible pl

Part #E02474642

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

Outdoor He E02138630
#4

A/c unit diagram

Outdoor he

Part #E02138630

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

Terminal E02476374
#12A

A/c unit diagram

Terminal

Part #E02476374

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

Capillary E02140936
#NI

A/c unit diagram

Capillary

Part #E02140936

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

Stop Valve E02150661
#16

A/c unit diagram

Stop valve

Part #E02150661

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

Compressor E02270353
#10

A/c unit diagram

Compressor

Part #E02270353

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

Symptoms for upright freezers

Main causes: clogged or frozen defrost drain tube…

Repair guides for upright freezers

How to replace a freezer door switch

How to replace a freezer door switch

When the door switch fails, the freezer can’t detect that the door is closed. Follow the steps in this repair guide to r…

Repair difficulty
Time required
 15 minutes or less
How to replace a freezer thermistor

How to replace a freezer thermistor

When the thermistor can’t sense the freezer temperature, the freezer is colder or warmer than the set temperature. Follo…

Repair difficulty
Time required
 45 minutes or less
How to replace a freezer evaporator fan

How to replace a freezer evaporator fan

Air won’t circulate to cool the freezer properly when the evaporator fan fails. Follow these step-by-step instructions t…

Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your central air conditioners

Maintaining your air conditioner

Maintaining your air conditioner

Learn how to maintain your central air conditioner to keep it running smoothly all summer long.…

How to prevent the 2 most common AC failures from ruining your summer

How to prevent the 2 most common AC failures from ruining your summer

Get tips to help keep your central AC running all summer long…

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Top questions about Sears and Sears PartsDirect

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