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Mitsubishi
Central Air Conditioner

Model # PJ-18AG.US Official Mitsubishi air conditioner heat pump

Here are the diagrams and repair parts for Official Mitsubishi PJ-18AGUS air conditioner heat pump, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 42 parts  |
Hinge T7W200691
Hinge

Part #T7W200691

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

Fuse T7W651239
#8

Control box diagram

Fuse

Part #T7W651239

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

Drain Pan T7W200529
#23

Pj-18ag.us, 24ag.us, pjx-36ag.us, 42ag.us structural diagram

Drain pan

Part #T7W200529

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

Fuse T7W829239
#7

Control box diagram

Fuse

Part #T7W829239

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

Capctor Run T7W200255
#11

Control box diagram

Capctor run

Part #T7W200255

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

Knob T7W829008
#16

Control box diagram

Knob

Part #T7W829008

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

Alarm Lamp T7W200217
#31

Pj-18ag.us, 24ag.us, pjx-36ag.us, 42ag.us structural diagram

Alarm lamp

Part #T7W200217

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

Relay T7W830215
#12

Control box diagram

Relay

Part #T7W830215

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

Fuse Holder T7W645241
#10

Control box diagram

Fuse holder

Part #T7W645241

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

Ht Exchgr T7W200480
#9

Pj-18ag.us, 24ag.us, pjx-36ag.us, 42ag.us structural diagram

Ht exchgr

Part #T7W200480

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

Symptoms for electric water heaters

Why does my water heater's heating element fail often?

Main causes: excessive tank sediment, high voltage supply…

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Why does the temperature of my hot water fluctuate?

Main causes: thermostats need adjustment, bad heating elements, faulty thermostats, tank sediment build-up, broken dip t…

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Repair guides for electric water heaters

How to replace a water heater element

How to replace a water heater element

If your water heater runs out of hot water quickly and one of the two heating elements has failed, replace the element f…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace an electric water heater thermostat

How to replace an electric water heater thermostat

If the water temperature fluctuates or you don't get enough hot water, follow these instructions to replace your water h…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a water heater temperature and pressure (T&P) relief valve

How to replace a water heater temperature and pressure (T&P) relief valve

Replace a broken temperature/pressure (T&P) relief valve on an electric water heater using these instructions.…

Read more
Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your central air conditioners

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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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