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Carrier
Heating & Cooling Combined Unit

Model # 48SD042090300 Official Carrier package unit

Here are the diagrams and repair parts for Official Carrier 48SD042090300 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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ALL PARTS
Showing 10 of 101 parts  |
Contactor HN51JD024
#NI

Front view/rear view diagram

Contactor

Part #HN51JD024

Replaced by #90-244

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Manufacturer substitution
This part replaces HN51JD024. Substitute parts can look different from the original.
BEST SELLER
$26.61 | 
18% OFF Phone Price : $32.61
In Stock
Insulation 48SS500601
#NI

Front view/rear view diagram

Insulation

Part #48SS500601

$39.82
In Stock
Wheel,blwr LA22RC011
#NI

Front view/rear view diagram

Wheel,blwr

Part #LA22RC011

$285.16
In Stock
Wire, Sens 99WZ2572XC206518
#NI

Front view/rear view diagram

Wire, sens

Part #99WZ2572XC206518

$22.48
In Stock
Grommet KA56DS001
#NI

Front view/rear view diagram

Grommet

Part #KA56DS001

This item is not returnable
$2.63
In Stock
Mtr Mnt Band P251-0078
#NI

Front view/rear view diagram

Mtr mnt band

Part #P251-0078

$24.58
In Stock
Circ Board LH33WP003
#NI

Front view/rear view diagram

Circ board

Part #LH33WP003

$495.60 | 
$12.00 OFF Phone Price : $507.60
In Stock
Central Air Conditioner Heat Exchanger 48GS660003
#NI

Front view/rear view diagram

Central air conditioner heat exchanger

Part #48GS660003

$769.05
In Stock
Grille 50HJ501200
#31

Front view/rear view diagram

Grille

Part #50HJ501200

$163.72
In Stock
Core,valve EC39EZ067
#NI

Front view/rear view diagram

Core,valve

Part #EC39EZ067

$22.03
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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Why isn’t my air conditioner cooling well?

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 furnace burners won’t stay lit?

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

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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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How to unclog the air conditioner drain line

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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 15 minutes or less
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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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