I have a problem with the climate control in my 2001 boxster base convertible, manual transmission. The system behaves as follows:
If i hit "auto" I get full blast A/C, highest fan speed, even with temp set to 85, but can turn fan speed down. Temp control has no effect, except...
If I manually set temp to "HI" I get full bore heat, but can turn fan speed down
I must manually shut off A/C, or it is always on.
Fan seems to work at all speeds by manually dialing in desired speed, but never changes in Auto, always full bore A/C. If I turn down fan speed, auto shuts off and display reads "Manuell"
I have changed cabin temp sensor with a used one that was claimed to be good but I had not tested. Any ideas?