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Carrier
Heating & Cooling Combined Unit

Model # 52CEA309301AA Official Carrier package unit

Here are the diagrams and repair parts for Official Carrier 52CEA309301AA package unit, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 160 parts  |
Overload HN68GP152
#NI

Front panel diagram

Overload

Part #HN68GP152

$50.42
In Stock
On/off Knob 52CQ500394
#69

Control assy diagram

On/off knob

Part #52CQ500394

$36.49
In Stock
Room Air Conditioner Fan Motor, 3/4-hp HC37GE237
#NI

Front panel diagram

Room air conditioner fan motor, 3/4-hp

Part #HC37GE237

$487.20
In Stock
Room Air Conditioner Louver 52CQ500434
#27

Front panel diagram

Room air conditioner louver

Part #52CQ500434

$258.80
In Stock
Blwr.wheel 52CQ500664
#125

Cabinet parts diagram

Blwr.wheel

Part #52CQ500664

$198.32
In Stock
Grommet P041-5109
#NI

Front panel diagram

Grommet

Part #P041-5109

$8.49
In Stock
Cord,svc. 52CQ400994
#79

Control assy diagram

Cord,svc.

Part #52CQ400994

$81.60
In Stock
Mount,mtr 52CQ500214
#NI

Front panel diagram

Mount,mtr

Part #52CQ500214

$46.67
In Stock
Strainer KH11NH079
#NI

Front panel diagram

Strainer

Part #KH11NH079

$17.49
In Stock
Paint 313974-751
#NI

Front panel diagram

Paint

Part #313974-751

$60.89
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

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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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

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