2012 c4 dual climate blower fan not working

[skragamuffin]

hi all yes this topic has been covered but i cannt find anything related to my specifications as i say i have dual climate control and the other day the blower fan just stopped working this happened abt 9 months ago but started working next time the car was used any i have read about bridging in the fusebox but the pictures are nothing like my fusebox so very unsure of where to look
many thanks in advance

[citroenguy]

I's start by changing the blower control unit/"resistor" if it stops again.