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Model # MU12NN2 Official Mitsubishi air conditioner
Here are the diagrams and repair parts for Official Mitsubishi MU12NN2 air conditioner, as well as links to manuals and error code tables, if available.
By Schematic
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Browse Parts for
MU12NN2 Air Conditioner
#12
A/c unit diagram
Terminal
Part #E02475374
The manufacturer no longer makes this part, and there's no substitute part
#NI
A/c unit diagram
Service po
Part #E02001641
The manufacturer no longer makes this part, and there's no substitute part
#7
A/c unit diagram
Base
Part #E02270290
The manufacturer no longer makes this part, and there's no substitute part
#2
A/c unit diagram
Grille
Part #E02141521
The manufacturer no longer makes this part, and there's no substitute part
#NI
A/c unit diagram
Fusible pl
Part #E02474642
The manufacturer no longer makes this part, and there's no substitute part
#4
A/c unit diagram
Outdoor he
Part #E02138630
The manufacturer no longer makes this part, and there's no substitute part
#12A
A/c unit diagram
Terminal
Part #E02476374
The manufacturer no longer makes this part, and there's no substitute part
#NI
A/c unit diagram
Capillary
Part #E02140936
The manufacturer no longer makes this part, and there's no substitute part
#16
A/c unit diagram
Stop valve
Part #E02150661
The manufacturer no longer makes this part, and there's no substitute part
#10
A/c unit diagram
Compressor
Part #E02270353
The manufacturer no longer makes this part, and there's no substitute part
Symptoms for upright freezers
Main causes: clogged or frozen defrost drain tube…
Repair guides for upright freezers

How to replace a freezer door switch
When the door switch fails, the freezer can’t detect that the door is closed. Follow the steps in this repair guide to r…
Repair difficulty
Time required
15 minutes or less

How to replace a freezer thermistor
When the thermistor can’t sense the freezer temperature, the freezer is colder or warmer than the set temperature. Follo…
Repair difficulty
Time required
45 minutes or less

How to replace a freezer evaporator fan
Air won’t circulate to cool the freezer properly when the evaporator fan fails. Follow these step-by-step instructions t…
Repair difficulty
Time required
45 minutes or less
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