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How to Deal with Common Faults of Air Source Heat Pumps?

2026-03-27
Latest company news about How to Deal with Common Faults of Air Source Heat Pumps?

With the arrival of winter, air source heat pumps have been favored by more and more families as an efficient and environmentally friendly heating method. However, during use, some faults are inevitable. This article will provide some simple and practical troubleshooting methods for common faults that air source heat pump users may encounter during winter heating, helping everyone to easily cope with the challenges of winter heating.

 

1. Poor heating effect

Fault manifestation

The air source heat pump has poor heating effect, and the indoor temperature rises slowly or cannot reach the set temperature.

 

Solution

1) Check the outdoor temperature

The heating efficiency of the air source heat pump will decrease at extremely low temperatures. If the outdoor temperature is too low, consider using auxiliary heating equipment.

 

2) Check the filter

Clean or replace the air filter regularly to prevent dust clogging and affecting the heating effect.

 

3) Check the refrigerant

Insufficient refrigerant will also affect the heating effect. Professionals need to check and add refrigerant.

 

4) Check the outdoor heat exchanger

Make sure the outdoor heat exchanger is free of frost or ice. If so, defrost it.

latest company news about How to Deal with Common Faults of Air Source Heat Pumps?  0

2. Excessive noise

Fault manifestation

The air source heat pump makes abnormal noise during operation, affecting the quality of life.

 

Solution

1) Check the fixing screws

Check whether the fixing screws of the air source heat pump and the pipe connection are loose. If they are loose, tighten them.

 

2) Check the fan blades

Fan blade deformation or dust accumulation may also cause increased noise. Clean the dust or replace the fan blades.

 

3) Check the compressor

Compressor abnormality may also cause noise. Ask a professional to check the operating status of the compressor.

 

3. Water leakage

Fault manifestation

Water leakage occurs at the heat pump or pipe connection.

 

Solution

1) Check the pipe connection

Check whether the connection between the heat pump and the pipe is loose or not sealed tightly. Re-tighten or replace the seal.

 

2) Check the drainage system

Ensure that the drainage system is unobstructed and clean the drainage pipes regularly.

 

3) Check the condenser

A cracked or damaged condenser may also cause water leakage. Ask a professional to check and replace the condenser.

 

4. Display screen failure

Failure manifestation

The air source heat pump display screen cannot display normally or displays abnormally.

 

Solution

1) Check the power supply

Make sure the heat pump power supply is normal, without voltage fluctuation or power outage.

 

2) Check the display screen connection cable

Check whether the connection cable between the display screen and the mainboard is loose or damaged, and reconnect or replace the connection cable.

 

3) Reset the air source heat pump

Try to reset the heat pump to see if it can restore normal display.

 

5. Automatic shutdown

Failure manifestation:

The heat pump suddenly shuts down automatically during operation and cannot continue to heat.

 

Solution

1) Check the temperature sensor

Temperature sensor failure may cause the air source heat pump to misjudge the temperature and automatically shut down. Professionals are required to check and replace the temperature sensor.

 

2) Check the power protection

Check whether the heat pump automatically shuts down due to power overvoltage, undervoltage or leakage protection. The power failure needs to be eliminated.

 

3) Check the high voltage protection

If the heat pump high voltage is too high, it may also trigger the high voltage protection and automatically shut down. The high voltage failure needs to be checked and eliminated.

 

Final summary

Although air source heat pumps may encounter some faults during winter heating, as long as we master the correct troubleshooting methods, we can easily cope with these challenges. Of course, in order to ensure the long-term stable operation of air source heat pumps, we also need to perform regular maintenance, such as cleaning filters, checking refrigerants, checking pipe connections, etc. At the same time, when encountering complex faults, you should contact professionals for repairs in time, and do not disassemble or repair the heat pump without authorization to avoid greater losses. I hope that through the introduction of this article, it can help everyone better use and maintain air source heat pumps and enjoy a warm and comfortable winter life.

Products
NEWS DETAILS
How to Deal with Common Faults of Air Source Heat Pumps?
2026-03-27
Latest company news about How to Deal with Common Faults of Air Source Heat Pumps?

With the arrival of winter, air source heat pumps have been favored by more and more families as an efficient and environmentally friendly heating method. However, during use, some faults are inevitable. This article will provide some simple and practical troubleshooting methods for common faults that air source heat pump users may encounter during winter heating, helping everyone to easily cope with the challenges of winter heating.

 

1. Poor heating effect

Fault manifestation

The air source heat pump has poor heating effect, and the indoor temperature rises slowly or cannot reach the set temperature.

 

Solution

1) Check the outdoor temperature

The heating efficiency of the air source heat pump will decrease at extremely low temperatures. If the outdoor temperature is too low, consider using auxiliary heating equipment.

 

2) Check the filter

Clean or replace the air filter regularly to prevent dust clogging and affecting the heating effect.

 

3) Check the refrigerant

Insufficient refrigerant will also affect the heating effect. Professionals need to check and add refrigerant.

 

4) Check the outdoor heat exchanger

Make sure the outdoor heat exchanger is free of frost or ice. If so, defrost it.

latest company news about How to Deal with Common Faults of Air Source Heat Pumps?  0

2. Excessive noise

Fault manifestation

The air source heat pump makes abnormal noise during operation, affecting the quality of life.

 

Solution

1) Check the fixing screws

Check whether the fixing screws of the air source heat pump and the pipe connection are loose. If they are loose, tighten them.

 

2) Check the fan blades

Fan blade deformation or dust accumulation may also cause increased noise. Clean the dust or replace the fan blades.

 

3) Check the compressor

Compressor abnormality may also cause noise. Ask a professional to check the operating status of the compressor.

 

3. Water leakage

Fault manifestation

Water leakage occurs at the heat pump or pipe connection.

 

Solution

1) Check the pipe connection

Check whether the connection between the heat pump and the pipe is loose or not sealed tightly. Re-tighten or replace the seal.

 

2) Check the drainage system

Ensure that the drainage system is unobstructed and clean the drainage pipes regularly.

 

3) Check the condenser

A cracked or damaged condenser may also cause water leakage. Ask a professional to check and replace the condenser.

 

4. Display screen failure

Failure manifestation

The air source heat pump display screen cannot display normally or displays abnormally.

 

Solution

1) Check the power supply

Make sure the heat pump power supply is normal, without voltage fluctuation or power outage.

 

2) Check the display screen connection cable

Check whether the connection cable between the display screen and the mainboard is loose or damaged, and reconnect or replace the connection cable.

 

3) Reset the air source heat pump

Try to reset the heat pump to see if it can restore normal display.

 

5. Automatic shutdown

Failure manifestation:

The heat pump suddenly shuts down automatically during operation and cannot continue to heat.

 

Solution

1) Check the temperature sensor

Temperature sensor failure may cause the air source heat pump to misjudge the temperature and automatically shut down. Professionals are required to check and replace the temperature sensor.

 

2) Check the power protection

Check whether the heat pump automatically shuts down due to power overvoltage, undervoltage or leakage protection. The power failure needs to be eliminated.

 

3) Check the high voltage protection

If the heat pump high voltage is too high, it may also trigger the high voltage protection and automatically shut down. The high voltage failure needs to be checked and eliminated.

 

Final summary

Although air source heat pumps may encounter some faults during winter heating, as long as we master the correct troubleshooting methods, we can easily cope with these challenges. Of course, in order to ensure the long-term stable operation of air source heat pumps, we also need to perform regular maintenance, such as cleaning filters, checking refrigerants, checking pipe connections, etc. At the same time, when encountering complex faults, you should contact professionals for repairs in time, and do not disassemble or repair the heat pump without authorization to avoid greater losses. I hope that through the introduction of this article, it can help everyone better use and maintain air source heat pumps and enjoy a warm and comfortable winter life.