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Carrier
Heating & Cooling Combined Unit

Model # 48DUN048090300 Official Carrier package unit

Here are the diagrams and repair parts for Official Carrier 48DUN048090300 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 148 parts  |
Contactor HN51JD024
#63

Control box/control panel assy diagram

Contactor

Part #HN51JD024

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

Strap Cap 317739-303
#93

Inside view diagram

Strap cap

Part #317739-303

$9.20
In Stock
Switch,prs HK06WC061
#68

Control box/control panel assy diagram

Switch,prs

Part #HK06WC061

$62.29
In Stock
Pcb Assembly HK38EA008
#74

Inside view diagram

Pcb assembly

Part #HK38EA008

Replaced by #HK38EA023

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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
Gas Valve EF33CW201
#136

Burner assy diagram

Gas valve

Part #EF33CW201

$274.95
In Stock
Filter KH43LG073
#105

Evap coil diagram

Filter

Part #KH43LG073

$87.11
In Stock
Panel 48GS500235
#20

Front view/rear view diagram

Panel

Part #48GS500235

$293.29
In Stock
Core,valve EC39EZ067
#111

Evap coil diagram

Core,valve

Part #EC39EZ067

$22.03
In Stock
Carrier Header Asy Distr No Met 50DT400061
#103C

Evap coil diagram

Carrier header asy distr no met

Part #50DT400061

$72.07
In Stock
Plug HK70EZ050
#118

Control box/control panel assy diagram

Plug

Part #HK70EZ050

$34.40
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

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

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