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Mitsubishi
Air Handler

Model # SEZ-KD18NA4 Official Mitsubishi split-system air conditioner heat pump

Here are the diagrams and repair parts for Official Mitsubishi SEZ-KD18NA4 split-system air conditioner heat pump, as well as links to manuals and error code tables, if available.

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Installation guide
Owner’s manual

Model diagram and schematic

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Showing 10 of 36 parts  |
Bushing E17319013
#405

Pcb assy diagram

Bushing

Part #E17319013

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

Fan Case B E17320129
#303

Motor assy diagram

Fan case b

Part #E17320129

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

Cover Assembly E17409690
#119

Cabinet parts diagram

Cover assembly

Part #E17409690

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

Filter E17326100
#122

Cabinet parts diagram

Filter

Part #E17326100

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

Thermistor E17319308
#404

Pcb assy diagram

Thermistor

Part #E17319308

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

Drain Hose E17319702
#123

Cabinet parts diagram

Drain hose

Part #E17319702

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

Room Air Conditioner Electronic Control Board E17679447
#401

Pcb assy diagram

Room air conditioner electronic control board

Part #E17679447

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

Bearing E17321509
#309

Motor assy diagram

Bearing

Part #E17321509

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

Shaft 4fan E17326499
#311

Motor assy diagram

Shaft 4fan

Part #E17326499

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

Float Swit E17409145
#108

Cabinet parts diagram

Float swit

Part #E17409145

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

Repair guides for bottom-mount refrigerators

How to replace a flipper mullion on a French-door refrigerator

How to replace a flipper mullion on a French-door refrigerator

If the flipper mullion breaks or its heater quits working, replace it in 15 minutes using these 4 easy steps.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a door gasket in a French-door refrigerator

How to replace a door gasket in a French-door refrigerator

The door gasket, often called a door seal, seals the gap around the door to keep the cold air in and the warm air out. R…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Read more
Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your air handlers

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Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

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