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Lennox
Central Air Conditioner

Model # HP18-28-11 Official Lennox condensing unit

Here are the diagrams and repair parts for Official Lennox HP18-28-11 condensing unit, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 70 parts  |
Condenser Fan Motor 50F1101
#40A

Cabinet/cooling-heating parts diagram

Condenser fan motor

Part #50F1101

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

Fan Motor 47F9901
#40

Cabinet/cooling-heating parts diagram

Fan motor

Part #47F9901

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

Capacitor P-8-3576
#53A

Control panel diagram

Capacitor

Part #P-8-3576

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

Relay P-8-3577
#52A

Control panel diagram

Relay

Part #P-8-3577

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

Rev Valve 31C0701
#15

Cabinet/cooling-heating parts diagram

Rev valve

Part #31C0701

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

Defrost 65G9001
Defrost

Part #65G9001

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

Contactor P-8-7736
#54B

Control panel diagram

Contactor

Part #P-8-7736

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

Coil-solen P-8-6659
#15B

Cabinet/cooling-heating parts diagram

Coil-solen

Part #P-8-6659

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

Fan Blade 95C5901
#42

Cabinet/cooling-heating parts diagram

Fan blade

Part #95C5901

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

Contactor 65C6901
#54A

Control panel diagram

Contactor

Part #65C6901

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…

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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

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Maintaining your air conditioner

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

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