Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Tips to find your model number
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Mitsubishi
Central Air Conditioner

Model # MU12NN Official Mitsubishi split-type air conditioner

Here are the diagrams and repair parts for Official Mitsubishi MU12NN split-type air conditioner, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 20 parts  |
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

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

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

Capillary E02140936
#NI

A/c unit diagram

Capillary

Part #E02140936

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

Cabinet E02141232
#1

A/c unit diagram

Cabinet

Part #E02141232

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

Stop Valve E02139662
#15

A/c unit diagram

Stop valve

Part #E02139662

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

Terminal E02270374
#12

A/c unit diagram

Terminal

Part #E02270374

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

Service Pa E02270245
#3

A/c unit diagram

Service pa

Part #E02270245

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

Effective articles & videos to help repair your central air conditioners

View all
Maintaining your air conditioner

Maintaining your air conditioner

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

Read more
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…

Read more
Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

Read more

Parts & More