Extruder Fan problems

My fan isn’t working.
When I connect to repeater and active the fan it does not seem to work.
The voltage at the fan is 1,5v (100% in repetier) The voltage at the motherboard connector is 14,8V.

Any thoughts?

Kind regards

Is the fan binding?
Is it wired correctly?



Note the polarity.

This seems to be correct… so issue stays.

If you disconnect the fan does the voltage come back?