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Mitsubishi
Central Air Conditioner

Model # PUZ-A42NHA2 Official Mitsubishi split-system outdoor unit

Here are the diagrams and repair parts for Official Mitsubishi PUZ-A42NHA2 split-system outdoor unit, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Installation guide

Model diagram and schematic

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Showing 10 of 44 parts  |
Conduit Pl T7WE01617
#NI

Cabinet assy diagram

Conduit pl

Part #T7WE01617

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

Thermistor T7WE03201
#8

Compressor assy diagram

Thermistor

Part #T7WE03201

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

Fan Grille T7WE03691
#2

Cabinet assy diagram

Fan grille

Part #T7WE03691

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

Service Pa T7WE08668
#10

Cabinet assy diagram

Service pa

Part #T7WE08668

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

Rear Guard R01E07698
#11

Cabinet assy diagram

Rear guard

Part #R01E07698

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

Muffler T7WE05467
#7

Compressor assy diagram

Muffler

Part #T7WE05467

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

Fuse 6.3a R01E06239
#NI

Compressor assy diagram

Fuse 6.3a

Part #R01E06239

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

Power Pcb R01E65313
#23

Compressor assy diagram

Power pcb

Part #R01E65313

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

Cover Pane R01E11658
#8

Cabinet assy diagram

Cover pane

Part #R01E11658

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

Capacitor R01E22255
#NI

Compressor assy diagram

Capacitor

Part #R01E22255

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

Symptoms for gas pressure washers

Choose a symptom to see related pressure washer repairs.

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Why does my pressure washer spray too hard?

Main causes: faulty unloader valve, bad pressure regulator…

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Why won't my pressure washer engine start?

Main causes: stale fuel, gummed up carburetor, engine needs tune up, throttle and choke controls need adjustment, bad re…

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Why does my pressure washer's engine lose power?

Main causes: dirty air filter, stale fuel, clogged or dirty carburetor, bad unloader valve…

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Why won't the pressure washer starter rope retract?

Main causes: broken recoil spring, damaged recoil starter…

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Why is smoke coming from the pressure washer's exhaust?

Main causes: overfilling engine with oil, improper fuel/air mixture, choke system problems, dirty carburetor, engine nee…

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Why does water spray out of my pressure washer's pressure relief valve?

Main causes: pump running for more than 5 minutes when the spray wand isn't being used, faulty pressure relief valve, ba…

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Why is the spray from my pressure washer weak?

Main causes: insufficient water supply, clogged water inlet screen, clogged pressure hose, faulty pump check valves, stu…

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Why won't my pressure washer mix in the detergent?

Main causes: using a high-pressure spray tip when applying detergent, clogged siphon tube, chemical injection system fai…

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Why doesn't my pressure washer recoil starter work?

Main causes: damaged recoil starter, oil inside cylinder, locked up engine piston…

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Repair guides for gas pressure washers

These step-by-step repair guides will help you safely fix what’s broken on your pressure washer.

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How to install a pressure washer chemical injection kit

How to install a pressure washer chemical injection kit

The chemical injection valve draws detergent into the pump. If it’s not drawing detergent, use a repair kit to replace t…

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Repair difficulty
Time required
 15 minutes or less
How to install a pressure washer O-ring kit

How to install a pressure washer O-ring kit

O-rings seal fittings on the pressure washer pump. Damaged seals allow water to leak from the pump. Follow these steps t…

Read more
Repair difficulty
Time required
 45 minutes or less
How to replace a pressure washer pump

How to replace a pressure washer pump

The pump can be damaged by air in the inlet water supply or by chemicals that remain in the pump body after using the ch…

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Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your central air conditioners

Use the advice and tips in these articles and videos to get the most out of your pressure washer.

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Maintaining your air conditioner

Maintaining your air conditioner

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

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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

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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