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Carrier
Heating & Cooling Combined Unit

Model # 48XZN042090300 Official Carrier central package

Here are the diagrams and repair parts for Official Carrier 48XZN042090300 central package, as well as links to manuals and error code tables, if available.

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Installation guide
Owner’s manual

Model diagram and schematic

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Showing 10 of 84 parts  |
Contactor HN51JD024
#63

Control box assy/control panel assy diagram

Contactor

Part #HN51JD024

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

Circ Board LH33WP003
#65

Control box assy/control panel assy diagram

Circ board

Part #LH33WP003

$495.60 | 
$12.00 OFF Phone Price : $507.60
In Stock
Defrost Pcb CESO130076-00
#76

Control box assy/control panel assy diagram

Defrost pcb

Part #CESO130076-00

Replaced by #HK32EA008

?
Manufacturer substitution
This part replaces CESO130076-00. Substitute parts can look different from the original.
$223.93 | 
5% OFF Phone Price : $235.93
In Stock
Temp Swtch HH18HA211
#137

Burner assy diagram

Temp swtch

Part #HH18HA211

$25.71
In Stock
Furnace Heat Exchanger Cover 48GS400108
#120

Gas section diagram

Furnace heat exchanger cover

Part #48GS400108

$325.53 | 
$12.00 OFF Phone Price : $337.53
In Stock
Central Air Conditioner Filter Dryer KH43LG072
#107

Reversing valve diagram

Central air conditioner filter dryer

Part #KH43LG072

$120.16 | 
9% OFF Phone Price : $132.16
In Stock
Blower Assembly 48GS400106
#146

Gas section diagram

Blower assembly

Part #48GS400106

Replaced by #48GS400649

?
Manufacturer substitution
This part replaces 48GS400106. Substitute parts can look different from the original.
$708.46 | 
$12.00 OFF Phone Price : $720.46
In Stock
Switch HK02ZA404
#96

Reversing valve diagram

Switch

Part #HK02ZA404

$92.49
In Stock
Sensor 48GS400192
#128

Burner assy diagram

Sensor

Part #48GS400192

$26.54
In Stock
Plate Assembly 48GS400310
#82

Blower assy diagram

Plate assembly

Part #48GS400310

$288.69
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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 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 enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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Top questions about Sears and Sears PartsDirect

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