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Carrier
Heating & Cooling Combined Unit

Model # 48SDN030040300 Official Carrier package unit

Here are the diagrams and repair parts for Official Carrier 48SDN030040300 package unit, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

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 100 parts  |
Circ Board LH33WP003
#NI

Cabinet parts diagram

Circ board

Part #LH33WP003

$495.60 | 
$12.00 OFF Phone Price : $507.60
In Stock
Furnace Inducer Vent Motor Assembly 48GS400649
#NI

Cabinet parts diagram

Furnace inducer vent motor assembly

Part #48GS400649

$708.46 | 
$12.00 OFF Phone Price : $720.46
In Stock
Temp Swtch HH18HA211
#NI

Cabinet parts diagram

Temp swtch

Part #HH18HA211

$25.71
In Stock
Furnace Heat Exchanger Cover 48GS400108
#NI

Cabinet parts diagram

Furnace heat exchanger cover

Part #48GS400108

$325.53 | 
$12.00 OFF Phone Price : $337.53
In Stock
Furnace Burner 50DK407030
#NI

Cabinet parts diagram

Furnace burner

Part #50DK407030

$39.89
In Stock
Panel 48GS500011
#21

Cabinet parts diagram

Panel

Part #48GS500011

$267.82
In Stock
Top Cover 48GS500003
#16

Cabinet parts diagram

Top cover

Part #48GS500003

$611.57
In Stock
Partition 48GS500004
#NI

Cabinet parts diagram

Partition

Part #48GS500004

$106.13
In Stock
Switch HH18HA460
#NI

Cabinet parts diagram

Switch

Part #HH18HA460

$77.49
In Stock
Panel 48GS500009
#20

Cabinet parts diagram

Panel

Part #48GS500009

$177.30
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

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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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