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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.

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Installation guide

Model diagram and schematic

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ALL PARTS
Showing 10 of 109 parts  |
Cap Screw T2W511067
#8

Indoor unit diagram

Cap screw

Part #T2W511067

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

Lmp Hlr Asy T2W521329
#12

Indoor unit diagram

Lmp hlr asy

Part #T2W521329

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

Rmt Cntl Asy T2W524426
#4

Remote controller diagram

Rmt cntl asy

Part #T2W524426

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

Cover Panel M21B20004
#24

Indoor unit diagram

Cover panel

Part #M21B20004

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

Wal Hol Cvr M21480973
#6

Accessories diagram

Wal hol cvr

Part #M21480973

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

Outdor Ht Ex T2W521630
#9

Outdoor unit diagram

Outdor ht ex

Part #T2W521630

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

Cap Screw T2W510067
#7

Indoor unit diagram

Cap screw

Part #T2W510067

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

4 Way Vlv M21975961
#10

Outdoor unit diagram

4 way vlv

Part #M21975961

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…

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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…

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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.…

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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…

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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

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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

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