Let's run down the list of what has been done.
Took the car to Saab repair shop. They did not fix AC/Heater.
Replaced the control panel in the dash twice. Did not fix problem.
Ran diagnostics on car using code reader. No fault codes.
Pressed Auto and Off on the control panel at same time and no codes showed up. Only a zero when first pressed.
What do I do next? 100 degrees tomorrow and blowing hot air even when set at 60 degrees. Very frustrating. Must be an answer. Any good AC folks reading the forum.
Thanks!