focus st 2012 cooling

[Focus2012]

Hi,

I have a 2012 focus ST. (stock,)
i have noticed of late that the fan noise if very loud and seems like it's over working
It seems to be when the climate control is on, as it doesn't seem to be a issues when its off .

I mainly started noticing it in the last week when i turn the car off and the fan is winding down
Is this a normal ?