Symptom

Possible Cause

Corrective Measure

Device does not work

If the power on LED (Start button) is not lit:

1) Power supply is not normal.

2) Emergency stop button is in the stop position.

1) Check power supply.

2) Rotate the emergency stop by 90º according to the arrows  make it reset.

If the light is on, the device does not start after pressing the Start button:

1) Lid is not closed, limit switch contact isn't good.

2) Time switch value is 0.

3) Circuit fault.

1) Check lid and close it.

2) Check time switch, and set appropriate time.

3) Contact customer support.

Device can only carry out a short time working:

1) Power supply is not normal.

2) Motor overload: check the indicator LED lights of the motor protector in electric control box.

1) Check power supply.

2) When the LED of A, B and C phase are on while overload LED is off, the motor works properly;

When A, B and C phase LED lights are off, it is the power phase fault or AC contactor failure. Please reconnect;

When Overload LED light is on, the motor current overloads or the rotating device fails. Please check the motor.

Grinding stock escapes

1) Seal in the lid of the grinding set is defective or soiled.

2) Grinding pressure clamping device is too low.

1) Clean seal ring and counter-face of the grinding jar or replace seal ring

2) Check whether the fixation screws of the clamping device is loose. If the screws fix well,  add 1-2mm thick plastic washer pits in the slot of positioning plate under the grinding jar.

Device runs unevenly with strong vibrations

Spring of the suspension of the holder is broken.

Replace the spring.