How to Fix LG HU915QE Projector Suddenly Turns It Off?

If the power of LG HU915QE Projector turns off suddenly, don’t worry, here is the solution.

Check whether the [Sleep Timer], [Auto Off], or [Auto Power Off] is set.
See if the external devices are operating together.
The auto-off function may have been activated. This product is equipped with an auto-off function that automatically turns the product off when no signal is present or when the remote control has not been pressed, depending on the settings for the auto-off function.