What is the material of the thermal insulation layer of the solar water heater? What should I do if the solar water heater does not supply water?

Solar water heaters save energy and can also meet people's daily bathing needs, so they are purchased and used by some families. What if the solar water heater does not supply water during use? What is the reason for the solar water heater to display E5? The following related content is shared with everyone!

Contents of this article

1. What is the material of the insulation layer of the solar water heater?

2. What to do if the solar water heater does not supply water?

3. What is the reason for E5 in solar water heater?

What is the insulation material of solar water heater?

The heat preservation water tank of the solar water heater is made of rigid polyurethane foam. Rigid polyurethane foam is a dense microporous foam formed by polymerization of isocyanate and polyol as basic raw materials. It has excellent properties such as light weight, high specific strength, impermeable, non-hygroscopic, insulating, shockproof, sound absorbing, oil-resistant and chemical corrosion-resistant. Compared with other foam plastics, it also has the characteristics of non-toxic, odorless, uniform bubbles and temperature resistance. It has strong self-adhesion to metal, concrete, masonry, wood, glass, fiber, etc., and the printed products with added flame retardant can self-extinguish when away from fire. In use, the rapid mixing foaming technology is applied, which can be cast into prefabricated panels or components. It can also be foamed on site, with simple process equipment, high construction efficiency and little pollution to the environment.

What to do if the solar water heater does not supply water

1. Water pressure is too low: It is possible that the water pressure is too low to reach the top of the water tank, or it cannot reach the water inlet opening pressure of the solenoid valve, which will also cause the water to fail to fill. At this time, we can buy a booster pump to ensure water filling.

2. Solenoid valve problem: If water cannot be discharged, it is certain that the water tank has been used up and the water has not come up. It may also be that the solenoid valve is faulty. Solar water supply must pass through it to supply water. If it does not work, water will not be supplied anyway. Inspection method: Press the water supply button, then turn on the shower head and adjust it to the hot water direction. If water comes out, it proves that the solenoid valve is working normally. If not, it means that the solenoid valve is faulty. At this time, the solenoid valve needs to be repaired or replaced.

3. Damage to vacuum tube: The main reason for the damage to the vacuum tube is that the solar water heater is filled with water in the morning. Since the temperature in the vacuum tube is already very high at this time, reaching more than 200 degrees Celsius, if it encounters very low temperature cold water at this time, it will explode and cause damage to the vacuum tube. As a result, water will flow out of the broken water pipe, making it impossible for the water to flow up. Therefore, it is recommended that you fill the solar water heater with water before sunrise or 1 hour after sunset.

4. Problems with water pipes: If the water pipes are not well insulated outdoors, they will freeze and water will not be supplied, so pay attention to keeping the water pipes warm; if the water pipes are frozen and cracked or the connecting joints are loose, the water that comes up will leak out again, resulting in no water supply.

Pay attention to regular cleaning. In order to prevent scale from forming inside the vacuum tube of the solar water heater, it needs to be cleaned regularly, usually every 2 to 3 years.

What is the E5 problem with solar water heaters?

The E5 situation of the gas water heater is caused by the temperature sensor overheating.

The reasons and solutions are as follows:

1. Insufficient water flow. It is recommended to check the water pressure. When the water pressure is low, insufficient water flow will occur, causing the sensor to exceed 85 degrees Celsius and a high temperature alarm. Installing a booster pump to increase the water pressure can avoid this fault.

2. When the faucet is blocked by foreign objects, the water flow will be blocked, causing the water temperature to rise and the over-temperature alarm to occur. Please clean the faucet in time, remove the impurities, and the problem can be solved after the water flow is smooth;

3. If the hot water pipe is blocked or there is scale in the pipe, it will also cause overheating. You need to use a descaling agent to clean the pipe;

4. A very small number of gas water heaters may also fail when the gas pressure is too high.