Check whether the power of certain heating components, solenoid valves, etc. is not suitable, or if the voltage at some line terminals is not strong, causing the instrument to overheat and overload!
Recommend "Dr. Sun" solar energy and Sancang solar energy (no need for water level probes and solenoid valves). Heating and hot water usage rates are fast in rainy weather, as is after-sales service. the rate is also significantly reduced, saving time and energy. This model only takes 20-30 minutes to heat without sunlight, while a single warehouse takes 2-3 hours!