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  |

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

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

Terminal E02270374
#12

A/c unit diagram

Terminal

Part #E02270374

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

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

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

Back Panel E02270233
#17

A/c unit diagram

Back panel

Part #E02270233

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

Outdoor Fan E02270351
#11

A/c unit diagram

Outdoor fan

Part #E02270351

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

Outdoor Fan E02270301
#8

A/c unit diagram

Outdoor fan

Part #E02270301

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

Symptoms for electric ranges

Main causes: faulty surface element, burner control switch failure, temperature limiter not working properly, loose wiri…

Main causes: impact from dropping an item on the glass surface, ceramic glass surface flaw, surface element temperature …

Repair guides for electric ranges

How to replace a range hidden bake element

How to replace a range hidden bake element

These step-by-step instructions guide you through replacing the oven hidden bake element in an electric range.…

Repair difficulty
Time required
 30 minutes or less
How to replace an electric range oven door outer glass panel

How to replace an electric range oven door outer glass panel

Learn how to replace a damaged outer window panel on your oven door with these step-by-step instructions. …

Repair difficulty
Time required
 45 minutes or less
How to replace a range glass cooktop

How to replace a range glass cooktop

These step-by-step instructions explain how to replace a damaged ceramic glass cooktop on an electric range. …

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…

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.…