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Carrier
Central Air Conditioner

Model # 38YSA042 SERIES300 Official Carrier heat pump

Here are the diagrams and repair parts for Official Carrier 38YSA042-SERIES300 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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ALL PARTS
Showing 10 of 58 parts  |
Cap 320238-401
Cap

Part #320238-401

Replaced by #330798-7011

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Manufacturer substitution
This part replaces 320238-401. Substitute parts can look different from the original.
$29.24
In Stock
Accumator KH71KN161
#74

Inside view diagram

Accumator

Part #KH71KN161

$225.04
In Stock
Muffler LM10KK011
#77

Inside view diagram

Muffler

Part #LM10KK011

$143.06
In Stock
Dfrost Cntrl CESO110063-02
#36

Control box diagram

Dfrost cntrl

Part #CESO110063-02

$187.57 | 
6% OFF Phone Price : $199.57
In Stock
Payne Harness 317497-701
#42

Control box diagram

Payne harness

Part #317497-701

$52.62
In Stock
Strainer KH11NH069
#78

Inside view diagram

Strainer

Part #KH11NH069

$11.97
In Stock
Grommet P041-5103
#22

Inside view diagram

Grommet

Part #P041-5103

$12.60
In Stock
Check Valve 321097-201
#83

Inside view diagram

Check valve

Part #321097-201

$33.47
In Stock
Central Air Conditioner Capacitor Strap 317739-302
#34

Control box diagram

Central air conditioner capacitor strap

Part #317739-302

$11.74
In Stock
Lug HY90AZ009
#38

Control box diagram

Lug

Part #HY90AZ009

$8.23
In Stock

Symptoms for gas cooktops

Why won't my cooktop's gas burners ignite or spark?

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

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

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

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Why do my cooktop's spark igniters keep clicking?

Main causes: stuck burner igniter switch, wet igniter switch contacts, faulty spark module…

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Repair guides for gas cooktops

How to replace a spark igniter switch on a gas cooktop

How to replace a spark igniter switch on a gas cooktop

Follow these step-by-step instructions to fix the surface burner ignition system on your gas cooktop by replacing the sp…

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Repair difficulty
Time required
 45 minutes or less
How to replace a spark module on a gas cooktop

How to replace a spark module on a gas cooktop

No flame on your gas cooktop? Installing a new spark module could be the fix you need.…

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Repair difficulty
Time required
 30 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

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

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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