Carrier
Heating & Cooling Combined Unit

Model # 48DU030040300 Official Carrier package unit

Here are the diagrams and repair parts for Official Carrier 48DU030040300 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 143 parts  |

Contactor HN51KB024
#63

Control box/control panel assy diagram

Contactor

Part #HN51KB024

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

Central Air Conditioner Capacitor Strap 317739-302
#93

Inside view diagram

Central air conditioner capacitor strap

Part #317739-302

In Stock
Plug HK70EZ027
#97

Control box/control panel assy diagram

Plug

Part #HK70EZ027

In Stock
Propeller LA01RA028
#90

Front view/rear view diagram

Propeller

Part #LA01RA028

In Stock
Pre.switch HK02ZA407
#96

Evap coil diagram

Pre.switch

Part #HK02ZA407

In Stock
Panel 48GS500010
#37

Front view/rear view diagram

Panel

Part #48GS500010

In Stock
Cover Assembly 48GS400551
#15

Inside view diagram

Cover assembly

Part #48GS400551

In Stock
Hood Cap 48GS500121
#35

Inside view diagram

Hood cap

Part #48GS500121

In Stock
Insulation 48GS500046
#23

Front view/rear view diagram

Insulation

Part #48GS500046

In Stock
Switch 331055-706
#95

Evap coil diagram

Switch

Part #331055-706

$76.35
6% OFF Phone Price : $81.35
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.…