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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
Blwr.wheel 52CQ500664
#125

Motor assy diagram

Blwr.wheel

Part #52CQ500664

$198.32
In Stock
Carrier Heater Assembly 52CQ402504
#NI

Front panel diagram

Carrier heater assembly

Part #52CQ402504

$162.54
In Stock
Switch HR56KX005
#75A

Control panel diagram

Switch

Part #HR56KX005

$42.18
In Stock
On/off Knob 52CQ500394
#69

Control panel diagram

On/off knob

Part #52CQ500394

$36.49
In Stock
Strainer KH11NH079
#NI

Front panel diagram

Strainer

Part #KH11NH079

$17.49
In Stock
Motor HC37GE239
#NI

Front panel diagram

Motor

Part #HC37GE239

$413.47
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 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

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

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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

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

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