1. For E-1 troubleshooting, please see the link: https://youtu.be/ahlTcHJB5sw
2. For E-2 troubleshooting, please see the link: https://youtu.be/XbC8uk4QK4k
3. For E-3 troubleshooting, please see the link: https://youtu.be/xtwSVtzgIuA
4. For E-4 troubleshooting, please see the link: https://youtu.be/Ntv1I2YOhXo
Note: The video only shows the troubleshooting steps, processes and methods, the actual product shall prevail.
By vevor