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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
Exchanger 48XZ660004
#140

Inside view diagram

Exchanger

Part #48XZ660004

$1086.80
In Stock
Button KA51PC175
#43

Inside view diagram

Button

Part #KA51PC175

This item is not returnable
$5.11
In Stock
Switch HH18HA535
#123

Gas section diagram

Switch

Part #HH18HA535

$109.06
In Stock
Heater HT32BH282
Heater

Part #HT32BH282

$169.08
In Stock
Cover Assembly 48GS400552
#15

Inside view diagram

Cover assembly

Part #48GS400552

$267.15
In Stock
Insulation 48GS500306
#29

Front view/rear view diagram

Insulation

Part #48GS500306

$104.76
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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Most common repair guides to help fix your heating & cooling combined units

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

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How to replace a heating and air conditioning system thermostat

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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