Mitsubishi
Air Handler

Model # MSZ-A12NA-1 Official Mitsubishi split-type air conditioner

Here are the diagrams and repair parts for Official Mitsubishi MSZ-A12NA-1 split-type air conditioner, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 32 parts  |

Central Air Conditioner Room Temperature Thermistor E12897308
#14

Fan assy diagram

Central air conditioner room temperature thermistor

Part #E12897308

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

Terminal B E12913375
#12

Fan assy diagram

Terminal b

Part #E12913375

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

Union Gas E12815666
#2

Heat exchanger diagram

Union gas

Part #E12815666

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

Sw Holder E12915782
#16

Fan assy diagram

Sw holder

Part #E12915782

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

Catechin L E12915100
#5

Cabinet parts diagram

Catechin l

Part #E12915100

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

Remote Control E12C22426
#11

Cabinet parts diagram

Remote control

Part #E12C22426

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

Band Motor E12897333
#18

Fan assy diagram

Band motor

Part #E12897333

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

Terminal E12C30780
#10

Fan assy diagram

Terminal

Part #E12C30780

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

Conduit Co E12C30979
#9

Fan assy diagram

Conduit co

Part #E12C30979

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

Heat Exchange E12A54620
#1

Heat exchanger diagram

Heat exchange

Part #E12A54620

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

Symptoms for top-mount refrigerators

Main causes: frozen or clogged defrost drain tube, cracked water system tubing…

Repair guides for top-mount refrigerators

How to replace a door gasket in a top-freezer refrigerator

How to replace a door gasket in a top-freezer refrigerator

The door gasket seals the gap around the door to keep the cold air in and the warm air out. It’s easy to replace a worn …

Repair difficulty
Time required
 15 minutes or less
How to replace the defrost thermistor in a top-freezer refrigerator

How to replace the defrost thermistor in a top-freezer refrigerator

The defrost thermistor attaches to the evaporator coil and measures the evaporator coil temperature during defrost.…

Repair difficulty
Time required
 15 minutes or less
How to replace the defrost heater in a top-freezer refrigerator

How to replace the defrost heater in a top-freezer refrigerator

The refrigerator defrost heater melts frost from the freezer’s evaporator fins. Replace the defrost heater if it doesn't…

Repair difficulty
Time required
 30 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.…