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Carrier
Heating & Cooling Combined Unit

Model # 50DU048300 Official Carrier package unit

Here are the diagrams and repair parts for Official Carrier 50DU048300 package unit, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 92 parts  |
Contactor HN51KB024
#NI

Package unit diagram

Contactor

Part #HN51KB024

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

Strap Cap 317739-303
#NI

Package unit diagram

Strap cap

Part #317739-303

$9.20
In Stock
Pcb Assembly HK38EA009
#NI

Package unit diagram

Pcb assembly

Part #HK38EA009

Replaced by #HK38EA012

?
Manufacturer substitution
This part replaces HK38EA009. Substitute parts can look different from the original.
$1166.10 | 
$12.00 OFF Phone Price : $1178.10
In Stock
Pcb Assembly HK38EA008
#NI

Package unit diagram

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
Insulation 50JS500032
#36

Package unit diagram

Insulation

Part #50JS500032

$30.27
In Stock
Core,valve EC39EZ067
#NI

Package unit diagram

Core,valve

Part #EC39EZ067

$22.03
In Stock
Panel 48GS500235
#20

Package unit diagram

Panel

Part #48GS500235

$293.29
In Stock
Insulation 48GS500306
#29

Package unit diagram

Insulation

Part #48GS500306

$104.76
In Stock
Filter KH43LG073
#NI

Package unit diagram

Filter

Part #KH43LG073

$87.11
In Stock
Grommet KA56TR056
#NI

Package unit diagram

Grommet

Part #KA56TR056

$25.31
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 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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Most common repair guides to help fix your heating & cooling combined units

These step-by-step repair guides will help you safely fix what’s broken on your HVAC system.

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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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Time required
 15 minutes or less
How to replace the furnace flame sensor

How to replace the furnace flame sensor

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How to replace a heating and air conditioning system thermostat

The control thermostat for your HVAC system can stop working. This repair guide shows how to replace it.…

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Repair difficulty
Time required
 30 minutes or less

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

Use the advice and tips in these articles and videos to get the most out of your HVAC system.

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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 enjoy all the online benefits we offer on our Sears PartsDirect website

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