kdross

I have a 1997 993 C2 with 24K miles. When I drive the car the heat is always on for the first 20-30 minutes. When I hit the A/C button, I still get heat. However, when I hit the Max A/C button, I get hold air. Then after driving the car for 20-30 minutes the HVAC system seems to work like normal.

I would like to figure out why the heat is always on the first 20-30 minutes. I am guessing there is an electric flap or switch somewhere in the HVAC system that is not working correctly. Is there is a common issue? I could not find anything while doing a search.

Thanks,

nine9six

http://www.bergvillfx.com/porschehvac1

Enjoy!
ToreB is a very active member in this forum, and the man when it comes to all things HVAC!

NYC993

Yep the servo probably gave up.

wunderbar

These heater flap servos can sometimes "stick"

Rockit

Your always best to pull codes from the Climate Control Module.
Tore at Bergvil sells the cable to hook to your laptop. http://www.bergvillfx.com/index.php/...4-and-993.html

You can download the software here http://www.bergvillfx.com/downloads/

Don't be like me and change parts that commonly go bad because there are a lot of them.

il pirata

Assume you are adjusting the temperature ****...