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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  |
Contactor HN51KC024
#31

Control box diagram

Contactor

Part #HN51KC024

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

Cap 320238-401
Cap

Part #320238-401

Replaced by #330798-7011

?
Manufacturer substitution
This part replaces 320238-401. Substitute parts can look different from the original.
$29.24
In Stock
Payne Harness 317497-701
#42

Control box diagram

Payne harness

Part #317497-701

$52.62
In Stock
Grommet P041-5103
#22

Inside view diagram

Grommet

Part #P041-5103

$12.60
In Stock
Raceway 319421-307
#53

Control box diagram

Raceway

Part #319421-307

$19.83
In Stock
Trim 320245-401
#10

Control box diagram

Trim

Part #320245-401

$109.64
In Stock
Check Valve 321097-201
#83

Inside view diagram

Check valve

Part #321097-201

$33.47
In Stock
Paint 313974-755
#NI

Top view diagram

Paint

Part #313974-755

$59.69
In Stock
Paint 313974-751
#NI

Top view diagram

Paint

Part #313974-751

$60.89
In Stock
Payne Thermostat HH18HA280
#49

Inside view diagram

Payne thermostat

Part #HH18HA280

$40.51
In Stock

Symptoms for upright freezers

Why does my freezer have a sheet of ice at the bottom?

Main causes: clogged or frozen defrost drain tube…

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Repair guides for upright freezers

How to replace a freezer control panel

How to replace a freezer control panel

A freezer control panel that doesn’t show the temperature or respond when you press the buttons could be broken. This DI…

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Repair difficulty
Time required
 15 minutes or less
How to replace a freezer door switch

How to replace a freezer door switch

When the door switch fails, the freezer can’t detect that the door is closed. Follow the steps in this repair guide to r…

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Repair difficulty
Time required
 15 minutes or less
How to replace a freezer thermistor

How to replace a freezer thermistor

When the thermistor can’t sense the freezer temperature, the freezer is colder or warmer than the set temperature. Follo…

Read more
Repair difficulty
Time required
 45 minutes or less

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