Maybe you can't set it yet. I'll give you a description of the setting:
strong function
□ When the machine is turned on, it will make a "beep" sound, indicating that the machine is in a normal state.
□ Clock display can display time: hours and minutes.
□ Water level preset can preset water levels of 50, 80 and 100%.
□ preset water temperature: preset heating temperature range: 30℃-80℃.
□ The water temperature indicator shows the actual water temperature inside the solar water heater.
□ The water level indicator shows the water stored in the solar water heater.
-Water shortage alarm When the water level changes from high to low and there is water shortage, the buzzer gives an alarm and 20% water level flashes.
-Water shortage When the water level changes from high to low and water shortage occurs, water will be automatically supplied to the preset water level after a delay of 30 minutes.
-Manual water supply When the water level is lower than the preset water level, press the water supply key to realize manual water supply to the preset water level; If the water level has reached the preset water level, add another gear on the basis of the original water level; If the water level has been increased to 100%, stop the manual water supply; When supplying water, press the water supply button to stop supplying water.
□ Temperature-controlled water supply When the water tank is not full and the water temperature is higher than 70℃, it will automatically replenish water to the appropriate water temperature of 55℃. This function can prevent the unreasonable phenomenon of less water and high water temperature;
-Timing water supply/timing heating If the water supply is abnormal, sometimes there is water and sometimes there is no water, users can set one or two timing water supply and timing heating according to their living habits. After the setting is completed, water supply and heating will be automatically carried out every day according to the set time; To cancel the function of timing water supply or timing heating, just set the timing time to 24:00.
□ When the water temperature and water level sensors of forced water supply fail, press the water supply key to realize forced water supply, and there will be a buzzer every minute, pay attention to whether there is overflow, and automatically turn off the water supply after 8 minutes.
-Automatic pressurization When the water supply pressure is low, the automatic booster pump function can be selected. When the water is full, the measuring and controlling instrument opens the electromagnetic valve and starts the water pump to pressurize the water supply. When the water is full, both are closed at the same time.
□ Pipe insulation When the outdoor temperature is low in winter, press the insulation key to start the electric heating belt, and the pattern will light up at the same time to prevent the water pipe from freezing and cracking; Press the heat preservation key to turn off the electric heating belt. Only one of pipeline insulation and automatic pressurization can be selected.
□ Power-off memory function automatically saves all setting parameters during power-off, and there is no need to reset them next time.
□ Anti-dry burning function When the water tank is dry or the water level is lower than 50%, the electric heating will automatically turn off.
□ Anti-high temperature air drying This function can prevent the solar water heater from being exposed to high temperature (above 95℃) air when it is short of water, and the vacuum tube will burst due to sudden water intake.
□ After the function of preventing the electric heating belt from catching fire is started, the measuring and controlling instrument will automatically turn off the electric heating belt after the temperature of the electric heating belt is balanced (about 10 minutes). After the temperature of the pipeline drops, the delay time set by the user (factory setting is 0 minutes, and the delay time of long-term power-on of the electric heating belt can be set arbitrarily) will automatically repeat, which can avoid long-term power-on and save electricity; Effectively prevent malignant accidents such as aging and fire of electric heating belt caused by long-term electrification.
It will ring for a long time when the water supply and heating are started, and it will ring for a short three times when it is closed.
If you still can't do it, you should write down the detailed steps again and contact me.