Air-source water heaters are green

Energy-saving water heaters that have become popular in recent years.

They have the characteristics of high efficiency, energy saving, and environmental protection, and are loved by many consumers.

However, some users find during use that the temperature of their air-energy water heaters never rises. This not only affects the user’s convenience, but may also cause the water heater’s working efficiency to decrease.

This article will explain in detail the reasons why the temperature of air-energy water heaters cannot rise and the corresponding solutions.

1. Reasons why the temperature of air-energy water heater cannot go up

Insufficient refrigerant: Refrigerant is an important part of the air-energy water heater and is responsible for transferring heat energy to the interior of the water heater. If there is insufficient refrigerant, the heat inside the water heater cannot be transferred effectively, causing the temperature to not rise.

Heat exchanger blockage: The heat exchanger is a key device of the air-energy water heater and is responsible for transferring the heat in the refrigerant to the inside of the water heater. If the heat exchanger is clogged, heat cannot be transferred effectively, which will also affect the normal operation of the water heater.

Refrigerant leakage: Refrigerant is an important component of air-energy water heaters. If it leaks, it will reduce the amount of refrigerant and affect the heat transfer efficiency.

Control system failure: If the control system fails, it may cause the water heater to be unable to work properly, including the inability to regulate the temperature properly.

2. Solution to the problem that the temperature of the air-source water heater cannot go up

Insufficient refrigerant: If the refrigerant is insufficient, refrigerant needs to be added in time. It should be noted that adding refrigerant needs to be done by professional maintenance personnel, otherwise it may cause damage to the water heater.

Heat exchanger clogged: If the heat exchanger is clogged, it needs to be cleaned. Cleaning the heat exchanger requires professional maintenance personnel. Cleaning by the user may cause damage to the heat exchanger.

Refrigerant leakage: If refrigerant leaks, it needs to be repaired. Likewise, leak repairs need to be done by professional maintenance personnel.

Control system failure: If the control system fails, it will need to be repaired or replaced. This needs to be performed by professional maintenance personnel. User self-repair may cause damage to the system.

Therefore, when the water temperature of the air-energy water heater cannot rise, we should find the crux of the problem from many aspects and angles to obtain the best solution.

1. The amount of hot water used exceeds the water production of the air-source heat pump. The water production of the air-source water heater changes. As the temperature decreases, the water production will attenuate. When the ambient temperature is lower than 10 degrees, part of the defrosting of the air-source heat pump unit will be lost. Part of the reason is that the user’s uncontrolled water use exceeds the heating load of the unit.

2. The temperature sensor that measures the water temperature is damaged. The detected temperature does not match the actual temperature of the hot water. Release the hot water from the water tank and test the water temperature with your hands. When the actual water temperature is too high, the controller will display a water overheating protection fault code.

3. For customers like hotels with water return systems, the heat dissipation of the heating pipes is large, and the heating heat of the air-energy water heater is less than the sum of the heat dissipation of the pipes and the heating load.

4. In areas with poor water quality, the condenser (hot water heat exchanger) of the air-energy water heater will be scaled after being used for a period of time, and the heat exchange efficiency will be reduced. In severe cases, the air-energy heat pump unit will report a high-pressure protection failure.

5. If the expansion valve opening is too large, the heat exchange efficiency between the refrigerant and the air is reduced, the heat obtained from the air is reduced, and the heating capacity is attenuated.

6. The air source heat pump system has insufficient refrigerant, the heat exchange efficiency of the hot water side heat exchanger and the air side heat exchanger is reduced, and the heating capacity is attenuated.

3. Conclusion

The reasons and solutions for why the temperature of air-energy water heaters cannot rise are not single and need to be dealt with according to the specific situation. In the process of dealing with the problem, users should try to avoid making repairs by themselves, as this may cause greater damage to the water heater.

If the problem cannot be solved, you should seek professional maintenance personnel to deal with it. In daily use, users should regularly maintain and inspect the water heater to ensure its normal operation.

In short, it is a common problem that the temperature of air-source water heaters cannot rise, but as long as users understand the cause of the problem and adopt corresponding solutions, they can easily deal with it.

At the same time, users should also perform regular maintenance and inspections on the water heater to ensure its normal operation and extend the service life of the water heater.

Written by: Emma from FUJIREJA GROUP
The Exporter and Manufacturer of Heaters since 2003
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