It may be that the switch circuit is welded or dropped, so it can be soldered or plugged in again. It may be that the reset thermostat on the heating pipe is broken, so remove it and replace it with a new one. There may be something wrong with the heating pipe. Connect the 200V power supply directly to both ends of the heating pipe. If there is no heating, replace the heating pipe. Knowledge expansion: the causes and solutions of the vibration of foot bath tub without surfing 1. Generally, when the phenomenon of not surfing occurs, most of the reasons are that the water pump is broken, so the water pump can only be replaced. 2. The control transistor 97A6 of the water pump is damaged, and the fault shall be eliminated after replacement. The phenomenon that the foot bath tub does not vibrate is mostly because the vibration motor is broken and needs to be replaced. Or the motor control transistor 97A6 is broken, and needs to be replaced to eliminate the fault. 3. If the button fails during use, you can check whether the connection between the surface sticker line and the control panel is loose or falling off. Re-insertion and repair welding, the patch is still damaged or damp after treatment, and the fault can be eliminated by replacing the patch.