The reasons for the high pressure failure are as follows: ⒈The water tank temperature sensor is not placed correctly, which leads to accurate temperature detection; ⒉The water tank sensor is bad; ⒊The high pressure switch is broken; ⒋The system is blocked; 5. The stop valve is not opened or not fully opened.
The troubleshooting methods are as follows: ⒈Detect the actual temperature of the water tank, if the detected temperature is higher than the displayed temperature, the sensor needs to be replaced; 2. Replace the water tank sensor; 3. If the pressure is normal, the pressure switch is broken, replace the pressure switch; 4. Check the high pressure of the system If the pressure is too high, the throttling element is blocked, and the system is cleaned; 5. Fully open the shut-off valve.