The temperature of the solar water heater keeps showing 99 degrees. What happened?

The thermal sensor is damaged, and the information source on the sensor is interrupted.

Check whether the link between the sensor and the controller is virtual, and check whether the display circuit is flooded and short-circuited. If the connection is normal, the display is normal, indicating that the sensor is faulty. Cut off the power supply immediately, stop using it, and contact the manufacturer for maintenance in time.

Before maintenance, it is necessary to confirm whether it is the fault of the water heater itself or improper use by people. Then prepare the purchase invoice of the water heater and the warranty card of the machine to see if it is within the warranty period.

Matters needing attention of solar water heater

When taking a bath, if the water in the solar water heater has been used up, but people haven't washed it clean, then cold water can be put in, and the hot water in the vacuum tube can be pushed out by using the principle that cold water sinks and hot water floats, so that the bath can continue. Using the above principle, if there is still a little hot water in the solar water heater after bathing, the hot water obtained from cold water can wash one more person later.

According to the weather forecast, the water supply can be determined and the satisfactory water temperature can be obtained. If it is sunny tomorrow, you can irrigate it; If it is cloudy or cloudy, the upper part of the water tank is filled with water; If it rains, keep the raw water without cold water. After taking a bath at night, if there is still half of hot water with a temperature of nearly 70 degrees in the water tank of the water heater, in order to prevent excessive heat loss (the less water, the faster heat loss), the amount of water added should also be determined according to the water temperature in the weather forecast. Tomorrow will be sunny and full of water; On rainy days, two-thirds of the water is filled.