Carrier
Heating & Cooling Combined Unit

Model # 50SX030300 Official Carrier central package

Here are the diagrams and repair parts for Official Carrier 50SX030300 central package, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 92 parts  |

Capactr Dual P291-3553
#33

Duct side view/top view diagram

Capactr dual

Part #P291-3553

Replaced by #PAKTRCFD355

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Manufacturer substitution
This part replaces P291-3553. Substitute parts can look different from the original.
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In Stock
Contactor HN51KB024
#38

Control box/indoor blower/pipong diagram

Contactor

Part #HN51KB024

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

Contactor HN52KC024
#167

Heater assy/wiring box assy diagram

Contactor

Part #HN52KC024

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

Rely Tim Dly HN67KJ077
#39

Control box/indoor blower/pipong diagram

Rely tim dly

Part #HN67KJ077

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

Element 50SS400544
#139

Heater assy/wiring box assy diagram

Element

Part #50SS400544

In Stock
Element 50SS400341
#158

Heater assy/wiring box assy diagram

Element

Part #50SS400341

In Stock
Limit Switch HH19ZA186
#192

Heater assy/wiring box assy diagram

Limit switch

Part #HH19ZA186

In Stock
Fan Prpop LA01AB202
#60

Duct side view/top view diagram

Fan prpop

Part #LA01AB202

In Stock
Grommet P041-5103
#33

Control box/indoor blower/pipong diagram

Grommet

Part #P041-5103

In Stock
Motor HC39AE209
#57

Duct side view/top view diagram

Motor

Part #HC39AE209

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 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.…

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.…