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Carrier
Heating & Cooling Combined Unit

Model # 50SX042300 Official Carrier central package

Here are the diagrams and repair parts for Official Carrier 50SX042300 central package, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 97 parts  |
Contactor HN51KC024
#38

Control box/indoor blower/piping diagram

Contactor

Part #HN51KC024

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

Rely Tim Dly HN67KJ077
#39

Control box/indoor blower/piping diagram

Rely tim dly

Part #HN67KJ077

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

Grommet KA56DS001
#1

Duct side view/top view diagram

Grommet

Part #KA56DS001

This item is not returnable
$2.63
In Stock
Bolt AA06BS228
#44

Control box/indoor blower/piping diagram

Bolt

Part #AA06BS228

This item is not returnable
$3.83
In Stock
Tempswitch HH19ZA171
#135

Heater assy/wiring box assy diagram

Tempswitch

Part #HH19ZA171

$111.50
In Stock
Drain Tube KA70PP057
#2

Duct end/evaporator coil/condenser end/blower access diagram

Drain tube

Part #KA70PP057

$27.91
In Stock
Carrier Motor HC43AE200
#45

Control box/indoor blower/piping diagram

Carrier motor

Part #HC43AE200

$503.95
In Stock
Sw Temp Act HH19ZA190
#174

Heater assy/wiring box assy diagram

Sw temp act

Part #HH19ZA190

$36.07
In Stock
Arm HC98ZZ256
#49

Control box/indoor blower/piping diagram

Arm

Part #HC98ZZ256

$7.54
In Stock
Element 50SS400342
#196

Heater assy/wiring box assy diagram

Element

Part #50SS400342

$744.35
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.

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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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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 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 is my furnace not blowing hot enough?

Thermostat problem, clogged air filter, burner failure...

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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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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

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Top questions about Sears and Sears PartsDirect

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