1. Add special scale remover and water to the water tank, and fill it up according to the ratio of 1: 10.

2. Put the water tank on the machine, plug in the power switch and let the machine work for about 30 minutes.

3. After working for about 30 minutes, turn off the power supply, unplug the plug, and completely remove the mixed liquid in the water tank and the main body.

4. Then pour a proper amount of clean water into the machine, lift the machine and swing it from side to side for several times, then let the water go, and so on for several times until the residual scale in the machine is washed away.