Hi i have got 1997 subaru Legacy, the internal air function was working fine, till last week, but sudenly, it stop working. I can see the display, but the air is not comming, not for the Aircond. and not for the heater. What could be wrong, and what's the fix. any idea abt the cost to get that fixed please

Is this A/C or entire climate control problem? I have a 97, too, and took out my climate control unit and found debris and spilled liquid on the unit! Liquids play havoc on electrical connectors. Make sure all connectors are clean and thoroughly connected to housings. Check the harness for breaks in wiring. Could have a short someplace. Heat and/or too much current could possibly cause immediate stoppage. Never forget simplest method..... check the fuses both inside car and under hood. If it's A/C as the problem, check R134 level at certified mechanic. Don't run A/C with low coolant - could burn up compressor. Let me know how it goes!