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Model # MSZ-FH12NA Official Mitsubishi air handler
Here are the diagrams and repair parts for Official Mitsubishi MSZ-FH12NA air handler, as well as links to manuals and error code tables, if available.
Installation guide
Owner’s manual
Error CodesBy Schematic
SELECT DIAGRAM
Browse Parts for
MSZ-FH12NA Air Handler
#2
Evaporator diagram
Liquid union
Part #E12151667
The manufacturer no longer makes this part, and there's no substitute part
#20
Motor parts diagram
Fuse
Part #E12A49382
The manufacturer no longer makes this part, and there's no substitute part
#6
Motor parts diagram
Vane mtr-h
Part #E17103303
The manufacturer no longer makes this part, and there's no substitute part
#2
Motor parts diagram
Central air conditioner blower wheel bearing
Part #E12001504
The manufacturer no longer makes this part, and there's no substitute part
#8
Cabinet parts diagram
Filter
Part #MAC-2330FT-E
The manufacturer no longer makes this part, and there's no substitute part
#3
Evaporator diagram
Union gas
Part #E12815666
The manufacturer no longer makes this part, and there's no substitute part
#9
Cabinet parts diagram
Furnace air filter
Part #E12L85100
The manufacturer no longer makes this part, and there's no substitute part
#1
Motor parts diagram
Room air conditioner blower wheel bearing
Part #E12751509
The manufacturer no longer makes this part, and there's no substitute part
#19
Motor parts diagram
Varistor
Part #E12B75385
The manufacturer no longer makes this part, and there's no substitute part
#3
Motor parts diagram
Drain hose
Part #E12897702
The manufacturer no longer makes this part, and there's no substitute part
Symptoms for window air conditioners
Choose a symptom to see related window air conditioner repairs.
Main causes: lack of electrical power, bad electronic control board, wiring failure, bad temperature sensor…
Main causes: clogged drain hole, air conditioner not leveled properly…
Main causes: dirty air filter, air conditioner is too small for the room, temperature set too cold, control failure…
Main causes: bad compressor, lack of refrigerant, bad compressor start relay, electronic control board failure…
Main causes: turning the air conditioner off and the back on too quickly, dirty or restricted condenser coil, compressor…
Main causes: clogged condensate drain, air conditioner not leveled properly, leaky window air seals …
Repair guides for window air conditioners
These step-by-step repair guides will help you safely fix what’s broken on your window air conditioner.
How to replace a window air conditioner ambient thermistor
If your window air conditioner isn’t cooling properly, it might need a new ambient thermistor. You can replace it yourse…
Repair difficulty
Time required
45 minutes or less
How to replace a window air conditioner user interface control board
Control buttons or lights on the user interface control board can stop working. This repair guide shows how to replace i…
Repair difficulty
Time required
30 minutes or less
How to replace a window air conditioner condenser fan
If the condenser fan blade is broken or the condenser fan motor won’t run, you can replace the broken parts yourself by…
Repair difficulty
Time required
90 minutes or less
Effective articles & videos to help repair your air handlers
Use the advice and tips in these articles and videos to get the most out of your window air conditioner.
Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…