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Carrier
Heating & Cooling Combined Unit

Model # 52PCA012431AA Official Carrier package unit

Here are the diagrams and repair parts for Official Carrier 52PCA012431AA 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 47 parts  |
Central Air Conditioner Run Capacitor P291-2054RS
#82

Control assy diagram

Central air conditioner run capacitor

Part #P291-2054RS

$39.04
In Stock
Hinge Pin 52CQ500392
#24

Front panel diagram

Hinge pin

Part #52CQ500392

$136.20
In Stock
Overload HN68GP152
#NI

Cabinet parts diagram

Overload

Part #HN68GP152

$50.42
In Stock
Filter 52CQ500414
#25

Front panel diagram

Filter

Part #52CQ500414

$98.49
In Stock
039, Sticker Warning 99NB500702
#NI

Cabinet parts diagram

039, sticker warning

Part #99NB500702

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

Partition 52CQ460001
#NI

Cabinet parts diagram

Partition

Part #52CQ460001

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

121,insulation 52CQ500372
#121

Cabinet parts diagram

121,insulation

Part #52CQ500372

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

Fan 52CQ500544
#123

Cabinet parts diagram

Fan

Part #52CQ500544

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

Frnt.panel 52CQ401441
#NI

Cabinet parts diagram

Frnt.panel

Part #52CQ401441

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

173, Heater Mount Assembly 52CQ400221
#NI

Cabinet parts diagram

173, heater mount assembly

Part #52CQ400221

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

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 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 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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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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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.…

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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 prevent the 2 most common AC failures from ruining your summer

How to prevent the 2 most common AC failures from ruining your summer

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