TROUBLESHOOTING

 

PROBLEM

 

SOLUTION

COMPRESSOR DOES NOT RUN

 

 

Contactor Open

 

 

1.

Power off.

1.

Restore power.

2.

Fuses blown in ®eld power circuit.

2. After ®nding cause and correcting, replace with correct size fuse.

3.

No control power.

3.

Check control circuit breaker; reset if tripped or replace if defective.

4.

Thermostat circuit open.

4.

Check thermostat setting.

5.

Time Guard II device not operating.

5.

Check Time Guard II devices.

6.

Compressor circuit breaker tripped.

6.

Check for excessive compressor current draw. Reset breaker;

 

 

 

replace if defective.

7.

Safety device lock-out circuit active.

7.

Reset lock-out circuit at thermostat or circuit breaker.

8.

Low-pressure switch open.

8.

Check for refrigerant undercharge, obstruction of indoor air¯ow, or

 

 

 

whether compressor suction shutoff valve is fully open. Make sure liquid

 

 

 

line solenoid valve(s) is open.

9.

High-pressure switch open.

9.

Check for refrigerant overcharge, obstruction of outdoor air¯ow, air in

 

 

 

system, or whether compressor discharge valve is fully open. Be sure

 

 

 

outdoor fans are operating correctly.

10.

Compressor overtemperature switch open.

10.

Check for open condition. Allow for reset. Replace if defective.

11.

Loose electrical connections.

11.

Tighten all connections.

12.

Compressor stuck.

12.

See compressor service literature.

Contactor Closed

 

 

1.

Compressor leads loose.

1.

Check connections.

2.

Motor windings open.

2.

See compressor service literature.

3.

Single phasing.

3.

Check for blown fuse. Check for loose connection at compressor terminal.

COMPRESSOR STOPS ON HIGH-PRESSURE SWITCH

 

 

Outdoor Fan On

 

 

1.

High-pressure switch faulty.

1.

Replace switch.

2.

Reversed fan rotation.

2.

Con®rm rotation, correct if necessary.

3.

Air¯ow restricted.

3.

Remove obstruction.

4.

Air recirculating.

4.

Clear air¯ow area.

5.

Noncondensables in system.

5.

Recover refrigerant and recharge as required.

6.

Refrigerant overcharge.

6.

Recover refrigerant as required.

7.

Line voltage incorrect.

7.

Consult power company.

8.

Refrigerant system restrictions.

8.

Check or replace ®lter drier, expansion valve, etc. Check that compressor

 

 

 

discharge service valve is fully open.

Outdoor Fan Off

 

 

1.

Fan slips on shaft.

1.

Tighten fan hub setscrews.

2.

Motor not running.

2.

Check power and capacitor.

3.

Motor bearings stuck.

3.

Replace bearings.

4.

Motor overload open.

4.

Check overload rating. Check for fan blade obstruction.

5.

Motor burned out.

5.

Replace motor.

COMPRESSOR CYCLES ON LOW-PRESSURE SWITCH

 

 

Indoor-Air Fan Running

 

 

1.

Compressor suction service valve partially closed.

1.

Open valve fully.

2.

Liquid line solenoid valve(s) fails to open.

2.

Check liquid line solenoid valve(s) for proper operation. Replace if

 

 

 

necessary.

3.

Filter drier plugged.

3.

Replace ®lter drier.

4.

Expansion valve power head defective.

4.

Replace power head.

5.

Low refrigerant charge.

5.

Add charge. Check low-pressure switch setting.

 

 

 

 

20

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Carrier 38AKS013-024 Troubleshooting, Problem Solution Compressor does not RUN, Compressor Stops on HIGH-PRESSURE Switch
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38AKS013-024 specifications

The Carrier 38AKS013-024 is a prominent series of packaged air conditioning units designed to achieve optimal performance across various applications. Engineered with advanced technologies, these units are ideal for both residential and light commercial spaces, offering reliable climate control in a compact design.

The main features of the Carrier 38AKS series include high-efficiency cooling and heating capabilities. With SEER ratings that meet or exceed industry standards, these units offer reduced energy consumption, making them an environmentally friendly choice. Furthermore, the Carrier 38AKS013-024 is equipped with a scroll compressor, which enhances reliability and reduces operating noise, creating a more comfortable indoor environment.

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In terms of characteristics, the Carrier 38AKS013-024 offers a range of cooling capacities, making it suitable for various space sizes and applications. The lightweight design facilitates easy installation, while the low noise levels ensure minimal disruption in residential settings. These units also come with environmentally friendly refrigerants, aligning with modern sustainability goals.

Carrier's commitment to quality and performance is evident in the 38AKS series. With their combination of innovative technology, energy efficiency, and robust construction, the Carrier 38AKS013-024 units represent an excellent choice for those seeking a reliable and efficient air conditioning solution. Whether for home or light commercial use, these units promise consistent comfort and satisfaction.
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