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banzia · 05-21-2025, 04:05 AM

Hi Folks

I have a 1999 2.5L 986

When I select the heater temp controls to adjust car temp ie get some heat, The controls and the LED all work fine. I can select the various temp on screen however this makes no difference to the air coming from heater. Always cold air.

The only way it will give me Hot air is when I select the Highest temp indicated by Hi on screen.

I also have a popping sound which I think is comming from cooling system although Im not certain of this..And may not be related to the temp select issue

Any ideas?

05-21-2025, 04:05 AM	#1
banzia Registered User Join Date: Aug 2015 Posts: 8	986 Heater Control Issues Hi Folks I have a 1999 2.5L 986 When I select the heater temp controls to adjust car temp ie get some heat, The controls and the LED all work fine. I can select the various temp on screen however this makes no difference to the air coming from heater. Always cold air. The only way it will give me Hot air is when I select the Highest temp indicated by Hi on screen. I also have a popping sound which I think is comming from cooling system although Im not certain of this..And may not be related to the temp select issue Any ideas? Last edited by banzia; 05-21-2025 at 06:51 AM.