1、Applicable Scenes: Instantaneous water heater is small in size, fast heating, simple and convenient to install, suitable for installation in kitchens, toilets, showers, public toilets, etc. Suitable for daily washing, washing hands, dishes, vegetables, face, bathing. 2、Temperature Adjustment: The temperature range of the instant water heater is between 30‑55 degrees. It can be turned on or off by remote control, and the temperature can be adjusted. It can also be controlled by the touch screen button of the machine. 3、Constant Temperature Water: Electric tankless water heaters provide continuous hot water at 30°C or higher in an instant, without waiting for preheating or dreadful temperature rises and falls, making them the perfect companion for your sink. 4、Easy to Use: The tankless water heater is equipped with a digital display and touch control panel, so the temperature setting is easy. Now turn on the tap and let the smart unit do the rest, you don't need to go through the grueling course setting the mixer tap without any hints. 5、Safe and Durable: Using multiple protection devices, each product has undergone strict testing and is 100% safe. The internal water and electrical circuits are designed to operate in separate circuits to avoid water leakage or scale accumulation hazards. Item Type: Instant Water Heater Heating Body: Aluminum Die Casting Weight: Approx. 1900g / 4.2lb Power: 3000W Frequency: 50-60HZ Wire: 2.08㎡ Waterproof Grade: IPX4 Product Size: Approx. 21x15x5.5cm / 8.3x5.9x2.2in Remote Control Power Supply: 2 AAA Batteries (Not Included) Temperature Range: 30-55°CCommon Faults and Solutions: 1. Check whether the power supply is powered on normally, the indicator light on the power‑on display will light up to show the temperature, and it will not light up if it is not powered on. 2. Under normal power on conditions, the water flow is turned on, press the middle switch key, the machine starts heating, and the water heater displays: set temperature, water flow, outlet temperature. 3. If the temperature does not rise, there are two possibilities: one is that the temperature control switch (overheat protection switch) inside the water heater jumps, press the temperature control switch to restore it. The other is that the heating pipe is faulty, and the heat pipe can be replaced. 4. If there is a display of no heating, the display shows the temperature, but the water flow and set temperature are not displayed, indicating that the water flow does not pass through the water heater, or the water pressure is too low, or the installation direction is wrong. Note that the water inlet and outlet must be installed correctly, but if the water If the pressure is enough, there is water flow and it does not heat, then check the turbo at the water heater inlet, there may be something stuck in the turbo, causing the water heater not to start. 5. It is recommended that the length of the water pipe at the water heater outlet should not exceed 3 meters. If it exceeds the length of the water pipe, there may be a water pressure difference, and the water pressure is not enough to start. (If the water tower is used in rural areas, the height of the water tower is required to be higher than 10 meters, so that the water pressure reaches the start value). 1 x Water Heater 4 x Screw 4 x Expansion Tube 1 x Manual 1 x Remote Control 1 x Remote Control Bracket 1 x Measuring Ruler