1. Install the water heater and plug in the power cord: when it is not turned on, you can set the time first. When hot water is not used, it is used as a clock.

2. How to set the time: Press the "Clock" key, and the hour position on the left will flash. Press the "positive" and "negative" keys to adjust. Press the "Clock" key again, and the minute position on the right will flash. Adjust by pressing the "positive" and "negative" keys. Stopping flashing indicates that the setting is complete.

3. Set the hot water temperature. The two numbers on the left of the display screen are the set temperature, and the two numbers on the right are the actual temperature. Press "On/Key" to turn on the electric water heater, and press "Positive" and "Negative" keys to adjust the temperature you want to set.

4. The two numbers on the left stop flashing to indicate that the temperature setting is completed, and the four numbers flash together to indicate that it is heating. The number stops flashing, and only the two numbers on the right show that the heating is completed, and it is in a state of heat preservation and can be used.