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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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 148 parts  |

Paint 313974-751
#NI

Front view/rear view diagram

Paint

Part #313974-751

In Stock
Furnace Burner 50DK407030
#132

Burner assy diagram

Furnace burner

Part #50DK407030

In Stock
Plug HK70EZ050
#118

Control box/control panel assy diagram

Plug

Part #HK70EZ050

In Stock
Insulation 48GS500302
#38

Front view/rear view diagram

Insulation

Part #48GS500302

In Stock
Igniter 48GS400168
#127

Burner assy diagram

Igniter

Part #48GS400168

In Stock
Valve,serv EC39EZ065
#106

Evap coil diagram

Valve,serv

Part #EC39EZ065

In Stock
Switch 331055-706
#95

Evap coil diagram

Switch

Part #331055-706

$76.35
6% OFF Phone Price : $81.35
In Stock
Plug Assembly HY07MP311
#53

Control box/control panel assy diagram

Plug assembly

Part #HY07MP311

In Stock
Tab Kit 48GS660005
#6

Front view/rear view diagram

Tab kit

Part #48GS660005

In Stock
Grommet KA56GR140
#34

Inside view diagram

Grommet

Part #KA56GR140

This item is not returnable
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.

Thermostat problem, clogged air filter, burner failure…

Dirty air filter, clogged condenser coils, low refrigerant charge, faulty compressor…

Thermostat problems, bad compressor/condenser fan capacitor, lack of refrigerant, failed compressor…

Main causes: errant thermostat settings, lack of electrical power, clogged drain line, wiring failure, control failure.…

Main causes: Errant thermostat settings, lack of power, bad interlock switches, lack of exhaust ventilation, wiring fail…

Dirty flame sensor, failed flame sensor, damaged burner, bad high limit switch…

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.

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…

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…

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.…

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.

Maintaining your air conditioner

Maintaining your air conditioner

Learn how to maintain your central air conditioner to keep it running smoothly all summer long.…

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

Get tips to help keep your central AC running all summer long…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…