Broken climate control buttons

[ignas]

Hi all ToyotaNation!

I'm very interested in a 2004 Toyota Corolla and looking forward to buy it, but there are some problems with 2 climate control buttons:

• "Increase blowing" button does'nt work . After lowering temperature, fans start to blow, then you can decrease it, but not increase...
• A/C button does'nt work - LED does'nt turn ON and A/C does'nt cool, but when you click REAR button (which automaticaly turns on the A/C) it works - LED turns on and A/C starts cooling...

So basically, both buttons should be broken!? Or it can be some kind of problems with climate controll computer?

But if something wrong with the computer, so why A/C still works when you press REAR ?

I need your opinions about this problem and is it possible/worth to repair ?