Central Air Conditioner

Model # PUZ-A18NHA3-BS Official Mitsubishi split-system outdoor unit

Here are the diagrams and repair parts for Official Mitsubishi PUZ-A18NHA3-BS split-system outdoor unit, as well as links to manuals and error code tables, if available.

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Browse Parts for
PUZ-A18NHA3-BS Split-System Outdoor Unit
Noise Filter T7WE20346
#20

Functional parts diagram

Noise filter

Part #T7WE20346

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

Central Air Conditioner Electronic Control Board T7WE84315
#18

Functional parts diagram

Central air conditioner electronic control board

Part #T7WE84315

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

Central Air Conditioner Electronic Control Board T7WE38313
#21

Functional parts diagram

Central air conditioner electronic control board

Part #T7WE38313

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

Thermistor R01E98202
#8

Functional parts diagram

Thermistor

Part #R01E98202

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

Rear Panel T7WE08682
#8

Structural parts diagram

Rear panel

Part #T7WE08682

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

Ser Panel R01E02518
#6

Structural parts diagram

Ser panel

Part #R01E02518

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

Terminal Block T7WE39716
#17

Functional parts diagram

Terminal block

Part #T7WE39716

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

Nut R01E08097
#3

Functional parts diagram

Nut

Part #R01E08097

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

Reactor R01E22259
#19

Functional parts diagram

Reactor

Part #R01E22259

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

Thermistor R01E99202
#24

Functional parts diagram

Thermistor

Part #R01E99202

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

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

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

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

Effective articles & videos to help repair your central air conditioners

Maintaining your air conditioner

Maintaining your air conditioner

Learn how to maintain your central air conditioner to keep it running smoothly all summer long.…

How to prevent the 2 most common AC failures from ruining your summer

How to prevent the 2 most common AC failures from ruining your summer

Get tips to help keep your central AC running all summer long…

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Top questions about Sears and Sears PartsDirect

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