Mitsubishi
Air Handler

Model # MS-12BN Official Mitsubishi air conditioner heat pump

Here are the diagrams and repair parts for Official Mitsubishi MS-12BN air conditioner heat pump, 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 109 parts  |

Comp Capctr T2W500353
#16

Outdoor unit diagram

Comp capctr

Part #T2W500353

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

Dfrst Thmst T2W521307
#25

Outdoor unit diagram

Dfrst thmst

Part #T2W521307

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

Frt Pnl Asmy T2W524000
#4

Indoor unit diagram

Frt pnl asmy

Part #T2W524000

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

Piping Tape M21478917
#5

Accessories diagram

Piping tape

Part #M21478917

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

Rem Cntl Box T2W523080
#7

Remote controller diagram

Rem cntl box

Part #T2W523080

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

Rmt Cntl Dor T2W510088
#13

Remote controller diagram

Rmt cntl dor

Part #T2W510088

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

Nzzle Asmbly T2W523235
#3

Indoor unit diagram

Nzzle asmbly

Part #T2W523235

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

Band Piping M21480708
#4

Accessories diagram

Band piping

Part #M21480708

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

Front Panel T2W522000
#2

Indoor unit diagram

Front panel

Part #T2W522000

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

Compressor T2W521661
#12

Outdoor unit diagram

Compressor

Part #T2W521661

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 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.…