The line is short-circuited. Water temperature sensors available on the market generally have direct temperature detection. In other words, the higher the temperature, the lower the resistance; conversely, the lower the temperature, the greater the resistance. The short circuit resistance is approximately zero and the maximum temperature displayed on the screen is the maximum temperature.
It needs to be repaired. This will waste electricity and could burn the heating tube, which will then cause a leak. It must be repaired as soon as possible.
If it is determined that the automatic heating and manual heating are not turned on, but the temperature still shows 99°, it means that the temperature detection device in the hot water tank solar panel is broken and you need to contact customer service for repair or replacement.
Informationdetailed:
Daily maintenance of solar water heaters:
< p>1. When installing a solar water heater, there may be a smell of dust or oil in the water pipe. When using it for the first time, you can first open the faucet to remove debris.2. The water stored in the solar water heater should be discharged regularly depending on local water quality conditions. Drain time can be selected in the morning when the sensor temperature is lower.
3. The surface of the solar water heater should be wiped regularly depending on the amount of dust in the area. It can be cleaned when it rains. Keeping the water heater surface clean can get higher heat. collection efficiency.
4. When hot water is not used for several consecutive sunny days, the hot water temperature will be very high. When usingn the solar water heater, please turn on the cold water first, then the cold water. hot water to avoid burns.
5. There is usually a filter device at the outlet end of the faucet. Scale and debris in the water line accumulate on this screen. It should be removed and cleaned regularly to increase water flow. smooth the water.
6. In winter, it is very common for pipes to freeze. If it turns out that the pipe has frozen but is not yet cracked, it can usually be cleaned automatically after the temperature rises. You can also use a hair dryer to blow on the water line, or wrap a towel around the water line and then slowly pour warm water over it. Do not cook it on fire, hit the water pipe, or scald it with boiling water, because. this will cause the pipe to burst. Multiple freeze blockages can easily cause freezing and fission.suration of the pipes. Pipe insulation measures must therefore be reinforced.
7. Solar water heaters should be cleaned, inspected and disinfected on average every two to three years. Users can also do some disinfection work themselves, such as purchasing chlorine-containing disinfectants and adding them. At the water. Pour it into your mouth, soak it for a while, and then release it, which can achieve a certain disinfection and sterilization effect.
Reference documents:
Baidu Encyclopedia - Solar water heater