How to maintain a solar water heater? What to do if the exhaust pipe of a solar water heater is blocked?

Solar water heaters are a type of hot water equipment that is widely used by users today. Solar water heaters are popular among people because of their high safety and environmental protection. However, when using solar water heaters, you must pay attention to maintenance to extend their service life. How to maintain them? Please read on.

Contents of this article

1. How to maintain a solar water heater

2. What is the principle of automatic water control valve of solar water heater?

3. What to do if the exhaust pipe of the solar water heater is blocked

How to maintain solar water heater

1. Regularly remove dust. Regularly remove dust and dirt from the transparent cover of the solar collector to keep the cover clean to ensure high light transmittance. Cleaning should be done in the early morning or evening when the sunlight is not strong and the temperature is low to prevent the transparent cover from being broken by cold water.

2. Regularly check the components of the solar water heater. Check all pipes, valves, float valves, solenoid valves, connecting hoses, etc. for leakage. If there is leakage, it should be repaired in time.

3. Regular drainage and cleaning. Regularly drain the system to prevent pipe blockage; and clean the water tank to ensure clean water quality.

4. Check regularly to prevent stagnation. When the circulation system stops circulating, it is called stagnation. Stagnation will cause the temperature inside the collector to rise, damage the coating, deform the insulation layer of the box, break the glass, etc. The cause of stagnation may be the blockage of the circulation pipe; in the natural circulation system, it may also be due to insufficient cold water supply, the water level in the hot water tank is lower than the upper circulation pipe; in the forced circulation system, it may be due to the cessation of the circulation pump.

What is the principle of automatic water control valve of solar water heater

Working principle:

High, medium, low or high, medium water level probe switches are installed in the water tank. The water level switch has a signal line connected to the water supply valve. When the water level in the water tank is lower than the high-end or medium-end probe, the electric valve circuit is turned on and energized, and the electric valve will open the valve; when the water level reaches the high-level switch of the water tank, the electric valve circuit is cut off, and the spring inside pushes the valve to close.

What to do if the exhaust pipe of the solar water heater is blocked

1. Because the water pressure of the tap water is too high, it will splash during the water filling process, which will cause the water in the water tank to flow out from the exhaust hole before it is full. The general solution to this phenomenon is to adjust the tap water pressure to the standard water pressure.

2. Water leakage from the exhaust hole of the solar water heater may also be caused by the return pipe being too long or blocked, resulting in the water not being able to flow out of the return pipe in time after it is full. The water in the actual water tank is full, and if water continues to be added, it will flow out from other exhaust holes.

3. If the exhaust hole of the solar water heater leaks, it is likely that the water supply valve or solenoid valve is not closed tightly, resulting in slow water supply. When the water is full, it will flow out from the exhaust hole. The solution is to close the water supply valve or repair the faulty parts.

4. The exhaust hole of the solar water heater is leaking. Water vapor is generated due to the high water temperature. This is normal, so there is no need to worry.

The above is an introduction to the treatment methods for solar water heater exhaust pipe blockage. Solar water heaters are a type of hot water equipment that users use very much today. Although the equipment is basically maintenance-free, users will still encounter some problems during use.