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Carrier
Central Air Conditioner

Model # 38TKB018 SERIES300 Official Carrier condensing unit

Here are the diagrams and repair parts for Official Carrier 38TKB018-SERIES300 condensing unit, 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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ALL PARTS
Showing 10 of 55 parts  |
Contactor HN51KB024
#25

Control asy diagram

Contactor

Part #HN51KB024

Replaced by #90-244

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Manufacturer substitution
This part replaces HN51KB024. Substitute parts can look different from the original.
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$26.61 | 
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In Stock
Grommet P041-5102
#17

Compressor asy diagram

Grommet

Part #P041-5102

This item is not returnable
$4.66
In Stock
Solenoid Valve EF11JE121
#NI

Outside view 1 diagram

Solenoid valve

Part #EF11JE121

$235.78
In Stock
Cap,stem 328963-751
#54

Accessories diagram

Cap,stem

Part #328963-751

$108.28
In Stock
Vlv Check EC36SZ063
#NI

Outside view 1 diagram

Vlv check

Part #EC36SZ063

$25.60
In Stock
Relay CESO130062-00
#NI

Outside view 1 diagram

Relay

Part #CESO130062-00

$144.98
In Stock
Grommet KA56GR140
#9

Outside view 1 diagram

Grommet

Part #KA56GR140

This item is not returnable
$2.97
In Stock
Valve EC39DM061
#NI

Outside view 1 diagram

Valve

Part #EC39DM061

This item is not returnable
$5.66
In Stock
Lug HY90AZ009
#38

Control asy diagram

Lug

Part #HY90AZ009

$8.23
In Stock
Fan,orific 312292-401
#43

Fan asy diagram

Fan,orific

Part #312292-401

$58.78
In Stock

Symptoms for gas ranges

Why won't my range's gas burner spark or ignite?

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure…

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Why isn't my range's gas burner heating properly?

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, control system failure, faulty t…

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Repair guides for gas ranges

How to replace oven door hinges on a gas range

How to replace oven door hinges on a gas range

See how to replace the oven door hinges on a gas range yourself, in just 30 minutes.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a range spark igniter switch

How to replace a range spark igniter switch

Follow these steps to replace the spark igniter switch—sometimes called a burner switch or spark switch—on a gas or dual…

Read more
Repair difficulty
Time required
 60 minutes or less
How to replace a range spark igniter electrode

How to replace a range spark igniter electrode

Learn how to replace the spark igniter electrode for the surface burners on a gas range or dual-fuel range.…

Read more
Repair difficulty
Time required
 45 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

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Top questions about Sears and Sears PartsDirect

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