FLSUN Printer Issue

[Roberts_Clif]

In the video it appears that your 3D Printer is having a hard time finding the end-stop switch.

I also did not see the Z-Axis travel up or down to find the bed.

First you should test the Z-Axis the determine if it will raise and lower. Using the LCD controls.
Then you should test the Z-Axis Proximity Sensor raise the Z-Axis up in the middle then lower it using a metal spatula simulate the bed tap the Sensor.
This should cause the Z-Axis to stop moving down raise a little then continue down again this is part of the double tap to the simulated bed tap sensor again to stop.

If this work then your Z-Axis sensor is detecting the bed. If not then the Z-Axis Proximity Sensor in failing.