POST 1 / ORIGINAL POSTEROriginal post
I have a 2001 996, whenever I start it, the heat is on even if it was shutoff when I shut engine off. Is this normal or can I do something to fix it?
17 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
Discussion summary
YOUR RESEARCH996 heater always on at startup
1 matching discussions were examined; no attributable action/outcome evidence was detected. No consensus or repair conclusion is claimed.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Read captured repliesInsufficient extracted evidence does not mean there is no answer in the original discussions.
1 matching discussions · 17 captured posts examined · 0 partial discussions
Coverage and how to read this overview
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
17 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
- Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
didn't work, shut off fan completely, stopped engine, on startup, hack back on, tried it several times and each time, hvac was on at startup.
No unique explicit quoted action; no causal link assigned
Generation: 20261026T203514Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
POST 2Original post
Quotes source post: 17810197
Dunno if its normal but my HVAC comes on when I start as well, even if it was off prior.
POST 3 / ORIGINAL POSTEROriginal post
Quotes source post: 17810217
thanks. That's one for that's the way it is.
POST 4Original post
Same here with my 99' Cab, suspect it's Porsche's clumsy attempt at "climate control".
POST 5Original post
I hear same noise, particularly passenger side dash area, at start up even when climate control is completely turned off. I'm not sure it is HVAC fan related. Aren't the radiators up front and perhaps a fan in front of them?
POST 6Original post
On both my original 2000 hvac controler and the 2004 one in the car now it stays in the same mode i left it in when i turned off the car. I generally do not leave the car in the "auto" mode.
POST 7Original post
Press the minus button on the fan speed control all the way down so no bars show. That will turn your HVAC off completely. If the HVAC fan was running when you shut the car off it will start up as soon as you start the car and attempt to maintain whatever temperature the temp control was set at previously.
POST 8 / ORIGINAL POSTEROriginal post
Quotes source post: 17813615
ok, I'll try that. Thanks
POST 9Original post
On my 2000 it is always on when you start it up even if you turned it off before you turned off the engine. I have ahd the car for over 21 years and it has always been this way.
POST 10 / ORIGINAL POSTEROriginal post
Quotes source post: 17813640
didn't work, shut off fan completely, stopped engine, on startup, hack back on, tried it several times and each time, hvac was on at startup. I guess that's what porsche wanted, now question is why.
POST 11 / ORIGINAL POSTEROriginal post
Quotes source post: 17814901
must be the way porsche wanted it, must be some genius reason.
POST 12Original post
Yep, that's how it works. Always on upon starting regardless of where it was when the engine was turned off.
POST 13 / ORIGINAL POSTEROriginal post
Quotes source post: 17814901
thanks all.
POST 14Original post
Quotes source post: 17815015
Not on my 02.
POST 15Original post
Not my 02 either. When the fan is turned off I get an "OFF" in the HVAC LCD where the temp setting is displayed. Next time the car is started everything is still off.
POST 16Original post
Quotes source post: 17814901
Same here on my 99. Doesn't matter if its off or not.
POST 17 / ORIGINAL POSTEROriginal post
Looks like prior to '02, hvac stays on, after that it's off.
This is a source reference. Confirm exact model applicability in the original material.