Lennox
Central Air Conditioner

Model # 1853 Official Lennox condensing unit

Here are the diagrams and repair parts for Official Lennox 1853 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 44 parts  |

Switch P-8-10978
#21B

Air conditioner diagram

Switch

Part #P-8-10978

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

Contactor P-8-7736
#22A

Air conditioner diagram

Contactor

Part #P-8-7736

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

Fan Motor 65G6001
#17

Air conditioner diagram

Fan motor

Part #65G6001

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

Contactor 65C6901
#22

Air conditioner diagram

Contactor

Part #65C6901

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

Well-thermometer LB-54392CF
#15

Air conditioner diagram

Well-thermometer

Part #LB-54392CF

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

Mount Pkg-comp 15J1301PR
#12D

Air conditioner diagram

Mount pkg-comp

Part #15J1301PR

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

Muffler 51H1301
#21

Air conditioner diagram

Muffler

Part #51H1301

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

Valve-service Liquid Line, 3/8" 54G9701
#13

Air conditioner diagram

Valve-service liquid line, 3/8"

Part #54G9701

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

Shield-rain P-8-6142
#20

Air conditioner diagram

Shield-rain

Part #P-8-6142

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

Cap Seal P-8-3187

#NI05

All parts diagram

Cap seal

Part #P-8-3187

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

Repair guides for side-by-side refrigerators

How to replace a foamed-in-place door gasket in a side-by-side refrigerator

How to replace a foamed-in-place door gasket in a side-by-side refrigerator

The door gasket seals the gap around the door to keep the cold air in and the warm air out. Replace a worn or damaged do…

Repair difficulty
Time required
 30 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…

Repair difficulty
Time required
 15 minutes or less
How to replace a defrost sensor in a side-by-side refrigerator

How to replace a defrost sensor in a side-by-side refrigerator

If frost is building up in the freezer of your side-by-side refrigerator, the defrost sensor could be at fault. You can …

Repair difficulty
Time required
 45 minutes or less

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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

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

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