What does it mean when the solar water heater sensor is broken?

Symptoms of a broken solar water heater sensor are:

1. Abnormal water temperature: The sensor is responsible for detecting the water temperature of the solar water heater and starting or stopping heating as necessary. If the sensor is damaged, it cannot accurately monitor the water temperature, resulting in abnormal water temperature, such as too high or too low water temperature.

2. Heating issues: Sensors typically work with solar collectors and heating elements (such as electric heaters) to ensure the water temperature is within the appropriate range. A damaged sensor cannot properly recognize solar heat input or trigger the heating element, causing heating problems such as an inability to heat water or poor heating.

Why does my solar water heater temperature always show99 degrees?

Sometimes the reason why the solar water heater sensor test is inaccurate is because the sensor is affected by external forces. Let's take a closer look.

1. Scale problem: After the water heater has been used for a period of time, a large amount of scale will adhere to the electrodes and temperature sensing blocks of the temperature sensor and temperature sensor. water level, affecting its normal operation. to go out.

Solution: You can start from both circuit and material aspects. Since the principle of triggering a small signal can effectively reduce the electromagnetic force on the ions, you can use the digital signal mode. In terms of materials, you can choose conductive silica gel as the protective body for stainless steel materials, which can prevent scale formation.

2. High temperature problem: Since the temperatureure in the solar water tank has been above 100 degrees Celsius for a long time, sometimes it can even reach 150 degrees Celsius. The temperature sensor and the water level sensor must be constantly in the water tank, which causes problems for the long-term operation of the sensor. During the operation process of solar water heaters, there are conditions such as air drying, long-term water boiling and long-term steaming, so the electronic components of the sensor are subject to aging or damage.

Solution: At present, polypropylene material has been developed in China, which has good high temperature resistance, good insulation and corrosion resistance. As for the part of the circuit that cannot withstand high temperatures, you can use a principle. water tank design.

3. Problemme of interference: solar water heaters are usually installed on the roof of buildings, and the signal transmission is easily affected by electromagnetic radiation from interference sources such as low-voltage lines, high-voltage lines and signal . turns. Most early output signals were analog signals. Even though they were filtered, the signal distortion was also very significant.

Solution: Digital temperature sensors and water level sensors can be used. It has the advantages of precise digital transmission and strong anti-interference ability. With the development of electronic technology, this treatment is no longer an easy task.

4. Waterproof problem: As mentioned in terms of high temperature resistance, the usual approach is to place the sensor probe in the water tank, directly in contact with thea water source, and placing the electronic components in a water tank protected from high temperatures. Electrode sensors are commonly used in solar water heaters. This type of sensor must be sealed with signal wires, electrodes and temperature sensing devices. However, due to the prolonged presence of steam in the water tank, the signal wires are easily corroded. .

Solution: Try to make the water entering the water tank resistant to high temperatures and corrosion. Made of polypropylene and stainless steel, silicone rings are used to seal places to seal. This sealing method is simple, easy to use and very effective.

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 morethe resistance is low; conversely, the lower the temperature, the greater the resistance. The resistance of the short circuit 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.

Detailed information:

Daily maintenance of solar water heaters:

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 using the solar water heater, please turn on the cold water first, then turn on the cold water. hot water to avoid burns.

5. There is usually a filter device at the outlet end of the robinet. Scale and debris in the water line accumulate on this screen. It should be removed and cleaned regularly to increase water flow. smooth the flow.

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 pipes to freeze and crack. Pipe insulation measures must therefore be reinforced.

7. Solar water heaters should be cleaned, inspected and disinfected on average everytwo to three years. Users can also carry out some disinfection work themselves. For example, they can buy disinfectants that contain chlorine. and add them to the water. Pour it into your mouth, soak it for a while, and then release it, which can achieve a certain disinfectant effect.

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