| Common Problems | Causes | Solutions | |
| 1 | no ultrasonic wave |
1. low voltage 2. The powertube is damaged. 3. The contact is not good. 4. The part s inside the generator are damaged. |
1. equipped with voltage stabilizer 2. replace the damanged one 3. check the contact point 4. send to us for repairing |
| 2 | heavy noise |
1.The adjacent amplitude lever is too near. 2. The screw for clip of amplitude lever is loosing. |
1. separate them properly 2. fasten it |
| 3 | Amplitude lever is too hot | The machine has run for a long time. | shut it down for one hour break |
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