Ender 3 extruder motor clicking

[Orrin Kuntz]

I realized that during the prints that the fan on the right side of the extruder and the one for the mainboard were not running. Is that a problem?

[Roberts_Clif]

I realized that during the prints that the fan on the right side of the extruder and the one for the mainboard were not running. Is that a problem?

I have been working with electronics most of my life, most of all problems could have been prevented with added cooling or vent fans.
With one exception of cranking your stereo to max volume.

Sorry mean cranking any Electrical/Mechanical equipment to Maximum operating input/output for extended periods of time.
To answer your question Yes cooling helps to extend the life of many Electrical/Mechanical items.

[Orrin Kuntz]

What percent speed should I be running it at?

[Roberts_Clif]

What percent speed should I be running it at?

Print speed is what each individual 3D Printer / Model to be printed will handle.

Example My 3D Printer having a rigid frame allows me to 3D Print at near melt rates vs pressure advance.
Meaning that I can print as fast as the filament can melt vs pressure advance to adhesion.
In simple terms 12.0mm^3 per sec or 107 (mm/s) now this is printing long walls.
If were to print curvy lines then the speed would be affected.
If these lines were very short an very curvy this again would affect the print Speed.
If a cheaper wobbly frame 3D Printer this would decrease the print speed dramatically.

Guess I can not answer your question there are too many unknown variables at this.