1. E0: Motor load abnormal - This error code indicates that the motor is not functioning properly， and it could be due to an overload， short circuit， or damaged wiring.

2. E1: Overheating protection - This code suggests that the device has overheated， and that the built-in protection mechanism has been activated to prevent further damage.

3. E2: Voltage abnormality - This error code indicates that there is a problem with the power supply， and it could be due to a wiring issue， a damaged transformer， or other electrical problems.

4. E3: Motor control error - This error code suggests that there is an issue with the circuitry controlling the motor， and it could be due to a damaged control board or faulty wiring.

5. E4: Temperature sensor failure - This error suggests that the temperature sensor inside the device is malfunctioning or has failed completely， and it will need to be replaced.

6. E5: Power module failure - This error code indicates that the power module inside the device has failed completely or is malfunctioning， and it will need to be replaced.

7. E6: Control board failure - This error code suggests that the control board inside the device has failed or is malfunctioning， and it will need to be replaced.

8. E7: Motor overheating - This error suggests that the motor has overheated， and it could be due to an overload or malfunctioning motor parts.

9. E8: Electrical circuit failure - This error code indicates that there is a problem with the electrical circuitry inside the device， and it could be due to damaged wiring， a short circuit， or other electrical problems.

10. E9: Overload protection - This error suggests that the device is overloaded beyond its capacity， and the built-in protection mechanism is preventing further damage.

11. E10: Speed sensor failure - This error suggests that the speed sensor inside the device is malfunctioning or has failed completely， and it will need to be replaced.

12. E11: Pressure sensor failure - This error code indicates that the pressure sensor inside the device is malfunctioning or has failed completely， and it will need to be replaced.

13. E12: Motor drive fault - This error code suggests that there is an issue with the motor control drive system， and it could be due to a damaged control board or faulty wiring.

14. E13: Power supply failure - This error code indicates that there is a problem with the power supply， and it could be due to a wiring issue， a damaged transformer， or other electrical problems.

15. E14: Circuit voltage abnormal - This error suggests that there is a problem with the electrical circuitry inside the device， and it could be due to damaged wiring， a short circuit， or other electrical problems.

16. E15: System overheating - This error code indicates that the system is overheating， and it could be due to a malfunctioning fan or poor ventilation.

17. E16: Malfunction of heating system - This error indicates that there is a problem with the heating system， and it could be due to a damaged heating element， faulty thermostat， or other issues.

18. E17: Malfunction of cooling system - This error suggests that there is a problem with the cooling system， and it could be due to a damaged cooling fan or other issues.

19. E18: Overloading protection safety switch failure - This error code indicates that the safety switch that protects the device from overloading has failed and needs replacement.

20. E19: Temperature fuse failure - This error suggests that the temperature fuse inside the device has failed， and it will need to be replaced.

These are some of the most common error codes that can occur with a wall-breaking machine in Hangzhou. If you encounter any of these problems， it is highly recommended that you consult a professional technician immediately for proper diagnosis and repair.