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Carrier
Heating & Cooling Combined Unit

Model # 50DU042300 Official Carrier package unit

Here are the diagrams and repair parts for Official Carrier 50DU042300 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 90 parts  |
Contactor HN51KB024
#NI

Package unit diagram

Contactor

Part #HN51KB024

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

Blower HD46RE120
#NI

Package unit diagram

Blower

Part #HD46RE120

Replaced by #58MV660002

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Manufacturer substitution
This part replaces HD46RE120. Substitute parts can look different from the original.
$1522.17
| 
$12.00 OFF Phone Price : $1534.17
In Stock
Carrier Header Asy Distr No Met 50DT400061
#NI

Package unit diagram

Carrier header asy distr no met

Part #50DT400061

$72.07
In Stock
Grille 50SZ500126
#31

Package unit diagram

Grille

Part #50SZ500126

$452.53
In Stock
Core,valve EC39EZ067
#NI

Package unit diagram

Core,valve

Part #EC39EZ067

$22.03
In Stock
Grommet KA56TR057
#NI

Package unit diagram

Grommet

Part #KA56TR057

This item is not returnable
$4.89
In Stock
Valve,serv EC39EZ065
#NI

Package unit diagram

Valve,serv

Part #EC39EZ065

$9.11
In Stock
Tab Kit 48GS660005
#6

Package unit diagram

Tab kit

Part #48GS660005

$273.24
In Stock
Grommet KA56TR056
#NI

Package unit diagram

Grommet

Part #KA56TR056

$25.31
In Stock
Top, Evap 48GS400244
#NI

Package unit diagram

Top, evap

Part #48GS400244

$427.15
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 replace a heating and air conditioning system thermostat

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