Control and Connection Box - ELPCB02 Not Working

[pbad]

There is one classroom where this connection box is no longer working. There is no power going into connection box. I have checked the following:

 

• power switch on right handside is set to on
  
• replaced fuse - still no power
  
• There is no blue light or orange light status light
  

 

Any ideas. I can't get anything to display on the projector because all connections go through this box.

 

This connection box was working fine on Friday.