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Carrier
Heating & Cooling Combined Unit

Model # 48DTN042090300 Official Carrier package unit

Here are the diagrams and repair parts for Official Carrier 48DTN042090300 package unit, as well as links to manuals and error code tables, if available.

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Showing 10 of 146 parts  |
Contactor HN51KB024
#63

Control box/panel assy diagram

Contactor

Part #HN51KB024

Replaced by #90-244

?
Manufacturer substitution
This part replaces HN51KB024. Substitute parts can look different from the original.
BEST SELLER
$26.61 | 
18% OFF Phone Price : $32.61
In Stock
Central Air Conditioner Filter Dryer KH43LG072
#105

Tube assy diagram

Central air conditioner filter dryer

Part #KH43LG072

$120.16 | 
9% OFF Phone Price : $132.16
In Stock
Control Board HK42FZ024
#65

Outside view diagram

Control board

Part #HK42FZ024

Replaced by #HK42FZ035

?
Manufacturer substitution
This part replaces HK42FZ024. Substitute parts can look different from the original.
$809.30 | 
$12.00 OFF Phone Price : $821.30
In Stock
Blower HD46RE120
#87

Blower assy diagram

Blower

Part #HD46RE120

Replaced by #58MV660002

?
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
Plug,model HK70EZ049
#118

Control box/panel assy diagram

Plug,model

Part #HK70EZ049

$25.06
In Stock
Harness Ay 48DU400001
#56

Outside view diagram

Harness ay

Part #48DU400001

$580.53
In Stock
Side Panel 48GS500236
#37

Front view/rear view diagram

Side panel

Part #48GS500236

$299.40
In Stock
Strap Cap P281-0028
#93

Outside view diagram

Strap cap

Part #P281-0028

$18.83
In Stock
Central Air Conditioner Condenser Fan Motor HC30CK233
#146

Outside view diagram

Central air conditioner condenser fan motor

Part #HC30CK233

$469.57
In Stock
Bracket 48GS500186
#131

Burner assy diagram

Bracket

Part #48GS500186

$24.46
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

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
How to replace the furnace flame sensor

How to replace the furnace flame sensor

The flame sensor detects when furnace burner flames are lit. You may need to replace the flame sensor if flames only sta…

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Repair difficulty
Time required
 15 minutes or less
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

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 prevent the 2 most common AC failures from ruining your summer

How to prevent the 2 most common AC failures from ruining your summer

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Top questions about Sears and Sears PartsDirect

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