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Carrier
Heating & Cooling Combined Unit

Model # 48XTN042090300 Official Carrier package unit

Here are the diagrams and repair parts for Official Carrier 48XTN042090300 package 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 146 parts  |
Pcb Assembly HK38EA008
Pcb assembly

Part #HK38EA008

Replaced by #HK38EA023

?
Manufacturer substitution
This part replaces HK38EA008. Substitute parts can look different from the original.
$971.19 | 
$12.00 OFF Phone Price : $983.19
In Stock
Control Board HK42FZ024
#65

Inside view diagram

Control board

Part #HK42FZ024

Replaced by #HK42FZ035

?
Manufacturer substitution
This part replaces HK42FZ024. Substitute parts can look different from the original.
$809.30 | 
$12.00 OFF Phone Price : $821.30
In Stock
Plate 50SS500879
#36

Gas section diagram

Plate

Part #50SS500879

$558.65
In Stock
Insulation 48GS500302
#38

Front view/rear view diagram

Insulation

Part #48GS500302

$103.78
In Stock
Core,valve EC39EZ067
#111

Switch assy diagram

Core,valve

Part #EC39EZ067

$22.03
In Stock
Hood Cap 48GS500121
#35

Front view/rear view diagram

Hood cap

Part #48GS500121

$64.40
In Stock
Grommet KA56DS001
#33

Inside view diagram

Grommet

Part #KA56DS001

This item is not returnable
$2.63
In Stock
Insulation 48GS500307
#26

Front view/rear view diagram

Insulation

Part #48GS500307

$63.60
In Stock
Support 48GS500243
#41

Inside view diagram

Support

Part #48GS500243

$47.16
In Stock
Sensor 48GS400192
#128

Burner assy diagram

Sensor

Part #48GS400192

$26.54
In Stock

Most common symptoms to help you fix your heating & cooling combined units

Choose a symptom to see related heating and air conditioning system repairs.

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Why is my furnace not blowing hot enough?

Thermostat problem, clogged air filter, burner failure…

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Dirty air filter, clogged condenser coils, low refrigerant charge, faulty compressor…

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Why isn’t my air conditioner cooling?

Thermostat problems, bad compressor/condenser fan capacitor, lack of refrigerant, failed compressor…

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Why won't my air conditioner turn on?

Main causes: errant thermostat settings, lack of electrical power, clogged drain line, wiring failure, control failure.…

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Why won't my furnace turn on?

Main causes: Errant thermostat settings, lack of power, bad interlock switches, lack of exhaust ventilation, wiring fail…

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Why won’t my furnace burners won’t stay lit?

Dirty flame sensor, failed flame sensor, damaged burner, bad high limit switch…

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The condensate drain line for your central air conditioner can clog with mold and mildew. Water will back up and start d…

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How to replace a heating and air conditioning system thermostat

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Effective articles & videos to help repair your heating & cooling combined units

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