2004 climate control

Hello, I have a 2004 that the climate control is stuck on heat and won't switch over to cool the cabin down.
That was fine in the winter but now that summer is here I would like to fix it, any idea's what I could check for?

Will the temperatures change on the unit, but it just blows heat, or ar the numbers stuck?

Will the temperatures change on the unit, but it just blows heat, or ar the numbers stuck?

It just blows hi heat, when I turn the dial nothing happens.

anybody......

Since the numbers don't change when you turn the dial (you said nothing happens), it sounds like you have a bad control head.

So where is the head control located?

it's the actual piece in the dash with the knobs on it

it's the actual piece in the dash with the knobs on it

thanks for the help Rich......