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
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.

Installation guide

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  |
Insl Plate T2W516970
#9

Indoor unit diagram

Insl plate

Part #T2W516970

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

Heater T2W521380
#33

Indoor unit diagram

Heater

Part #T2W521380

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

Hi Prsr Swch T2W460646
#15

Outdoor unit diagram

Hi prsr swch

Part #T2W460646

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

Vn Sprng Hld T2W516041
#30

Indoor unit diagram

Vn sprng hld

Part #T2W516041

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

Trmnl Board T2W521374
#6

Indoor unit diagram

Trmnl board

Part #T2W521374

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

Rmt Swt Mtg M21370083
#2

Accessories diagram

Rmt swt mtg

Part #M21370083

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

Rmt Cntl Box T2W522080
#6

Remote controller diagram

Rmt cntl box

Part #T2W522080

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

Trmnl Bed T2W522374
#18

Outdoor unit diagram

Trmnl bed

Part #T2W522374

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

Nzzle Asmby T2W522235
#2

Indoor unit diagram

Nzzle asmby

Part #T2W522235

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

Symptoms for gas ranges

Why won't my range's gas burner spark or ignite?

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure…

Read more

Why isn't my range's gas burner heating properly?

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, control system failure, faulty t…

Read more

Repair guides for gas ranges

How to replace oven door hinges on a gas range

How to replace oven door hinges on a gas range

See how to replace the oven door hinges on a gas range yourself, in just 30 minutes.…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a range spark igniter switch

How to replace a range spark igniter switch

Follow these steps to replace the spark igniter switch—sometimes called a burner switch or spark switch—on a gas or dual…

Read more
Repair difficulty
Time required
 60 minutes or less
How to replace a range spark igniter electrode

How to replace a range spark igniter electrode

Learn how to replace the spark igniter electrode for the surface burners on a gas range or dual-fuel range.…

Read more
Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your air handlers

View all
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.…

Read more

Parts & More