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Carrier
Heating & Cooling Combined Unit

Model # 52CE312451RC Official Carrier package unit

Here are the diagrams and repair parts for Official Carrier 52CE312451RC package unit, as well as links to manuals and error code tables, if available.

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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 83 parts  |
Cord 52CQ400814
#78

Front panel diagram

Cord

Part #52CQ400814

$112.92
In Stock
Filter 52CQ500414
#25

Front panel diagram

Filter

Part #52CQ500414

$98.49
In Stock
Room Air Conditioner Louver 52CQ500434
#27

Front panel diagram

Room air conditioner louver

Part #52CQ500434

$258.80
In Stock
Carrier Cover 52CQ502563
#NI

Front panel diagram

Carrier cover

Part #52CQ502563

$628.42
In Stock
Carrier Heater Assembly 52CQ402504
#NI

Front panel diagram

Carrier heater assembly

Part #52CQ402504

$162.54
In Stock
Mount,mtr 52CQ500214
#NI

Front panel diagram

Mount,mtr

Part #52CQ500214

$46.67
In Stock
Blwr.wheel 52CQ500664
#125

Motor assy diagram

Blwr.wheel

Part #52CQ500664

$198.32
In Stock
Strainer KH11NH079
#NI

Front panel diagram

Strainer

Part #KH11NH079

$17.49
In Stock
On/off Knob 52CQ500394
#69

Control panel diagram

On/off knob

Part #52CQ500394

$36.49
In Stock
Door 52CQ500424
#26

Front panel diagram

Door

Part #52CQ500424

$76.87
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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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

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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