Extruder does not heat!!

So my extruder heats to 0% then switch to loading material screen....what could be the problem?

I've changed the extruder cable, thermocouple, hot end.  But it still does this...

other than that, my bed heats up so what could be the problem here...??

Hi, rosettav.

Is the extruder trying to load the material? Is it possible?

Is the hotend hot or is it completely cold when it switches to the material loading screen?