The heating of the soymilk machine indicates that the heating tube is good, and the motor itself may be damaged if it does not turn.

Fuses connected in series with motors;

The high-power SCR of the motor drive voltage output tube is damaged;

The relay coil of the output voltage control element of the AC motor is open;

The computer board program disorder caused the motor to be out of control.

Corresponding solutions to the above problems:

If the motor is damaged, it can be replaced directly. When replacing, it is necessary to distinguish whether it is an AC motor or a DC motor, and replace it according to the original model specifications;

Fuses of series motors can be replaced directly. After replacement, check whether there are other problems with the motor before starting and debugging.

The damaged high-power SCR can be replaced according to the original model;

Relay coil disconnection can only be replaced according to the current capacity of the original contact;

The damaged computer board can be replaced according to the original model to ensure the normal work of the program.

Note: Before replacing the circuit board assembly, the power supply must be cut off to ensure safe operation. While avoiding electric shock accidents, we should also pay attention to electrical safety.