At present, the domestic market in China shows that a 200L air-to-water heater (heat pump water heater) for household use typically costs more than 6,000 yuan. Meanwhile, a 150L model usually ranges between 5,000 and 55,000 yuan. As a result, these units are considered expensive, and for some working-class consumers, they can be seen as a significant investment. Many buyers question the cost-effectiveness of such products, but even more commonly, they ask, "How long does a water heater last?" To get a clearer picture, I reached out to Huatian Cheng Electric Co., Ltd., a well-known brand in the industry.
According to an official from China Tiancheng, air-to-water heat pump water heaters generally have a service life of up to eight years. This is due to their high level of automation, which requires regular maintenance to ensure optimal performance. With proper care and timely repairs, the reliability and lifespan of the unit can be significantly extended.
The after-sales service manager at Huatian Cheng explained that maintenance starts with routine inspections. First, it's essential to check the power supply and wiring of the unit to ensure there are no loose connections or electrical issues. Any abnormalities should be addressed immediately through repair or replacement.
Next, the water system needs regular attention. This includes checking the safety valve, liquid level controller, and exhaust device to make sure they're functioning properly. These components help prevent air from entering the system, which could reduce water circulation and affect the unit’s heating efficiency and operational stability.
In addition, the pump and water valves should be inspected to ensure they’re working correctly, and all pipes and joints should be checked for leaks. The refrigerant lines and inflatable valves must also be examined for oil leakage to maintain the system’s integrity.
If the actual water temperature doesn't match the temperature displayed on the control panel, it may indicate a problem with the temperature sensor. In such cases, the sensor should be checked for proper contact.
Regular inspections not only ensure the unit operates efficiently and safely but also significantly extend its lifespan. For consumers looking to maximize their investment, understanding and following these maintenance steps is crucial.
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