Emerson
Central Air Conditioner

Model # 18HT42 Official Emerson air conditioner

Here are the diagrams and repair parts for Official Emerson 18HT42 air conditioner, 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 66 parts  |

Capacitor 160500710138
#22

Blower diagram

Capacitor

Part #160500710138

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

Motor 5011T74P0040
#4

Blower diagram

Motor

Part #5011T74P0040

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

Compressor 501648182F25
#1

Refrigerant assembly diagram

Compressor

Part #501648182F25

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

Knob 111404290011
#4

Controls diagram

Knob

Part #111404290011

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

Clip 881000030001
#13

Blower diagram

Clip

Part #881000030001

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

Cover Clip 160602080001
#5

Refrigerant assembly diagram

Cover clip

Part #160602080001

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

Switch 112116490002
#17

Blower diagram

Switch

Part #112116490002

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

Palnut 882000230005
#6

Refrigerant assembly diagram

Palnut

Part #882000230005

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

Shroud 111704870001
#2

Blower diagram

Shroud

Part #111704870001

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

Power Cord, 16/3 15a, 230/208 V. 5' 6" Long 112124270002
#20

Blower diagram

Power cord, 16/3 15a, 230/208 v. 5' 6" long

Part #112124270002

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

Symptoms for top-mount refrigerators

Main causes: frozen or clogged defrost drain tube, cracked water system tubing…

Repair guides for top-mount refrigerators

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 the evaporator fan motor in a top-freezer refrigerator

How to replace the evaporator fan motor in a top-freezer refrigerator

The evaporator fan motor blows air across the evaporator coils and through the refrigerator cabinet for cooling. Replace…

Repair difficulty
Time required
 15 minutes or less
How to replace the compressor start relay in a top-freezer refrigerator

How to replace the compressor start relay in a top-freezer refrigerator

The compressor start relay starts the compressor and shuts it off if the motor overheats. Replace the start relay if it'…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your central air conditioners

Maintaining your air conditioner

Maintaining your air conditioner

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

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

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