rosenfe

I get heat all the time, even without fan on. Ac setting does not provide cold air. I will be checking on ac next week and get charge if needed. This is a 94. Would cc module be usuall suspect. If so ,how to test

Zirconocene

I don't know if it's the same system as a 944 (though I suspect it is) but there's a little clip that fails. That clip holds a rod that actuates a vent flap. The default in these cars is to provide hot air, for the case where there's a problem in winter.

Here's a nice link with some pictures of what to check: https://rennlist.com/forums/924-931-...r-blowing.html

Cheers

jsheiry

Here is a very recent thread by Tom M'Guinn. He has put together an excellent troubleshooting of HVAC system. https://rennlist.com/forums/924-931-...testing-3.html