If the screen is blank but the unit has power, press and hold the “Power” button for 5 seconds. This hard reset clears temporary logic errors.
. Because it is an "on-demand" system, it only heats water as it flows through the unit, which can significantly reduce standby energy costs compared to traditional tank heaters. Key Specifications & Features Power & Voltage : Typically available in variants, with power ratings ranging from 3000W to 6000W : Requires a minimum water flow (often around ) to trigger the heating element. Temperature Range : Generally heats water to a range of 35–55°C Safety Protections xyfb water heater manual