1.No vibration, the main reasons are power lead, open fuse, bad contact between plug or switch, bad motor or open coil, etc.
2. Vibration regulation failure, the common reasons are: poor switching, lead opening, rectifier diode damage, etc.
3. When used, abnormal noise is emitted. The main reasons are that the distance between the fixed core and the movable core is too close, and the rubber pad between the two cores is damaged or lost.
4. Vibration is too weak or too strong, the main reason is that the distance between the two cores is not adjusted properly.
5. The motor operates normally but does not vibrate. The main reason is that the eccentric hammer falls off and only needs to be re-installed.
Zhejiang Junchang Electric Appliance Co., Ltd. was founded in 2013. It is located in the famous China business gift production base: Pingyang Area, Zhejiang Province. The transportation is also very convenient.