fullymatted.
Back to search
986Forum

Heat-A/C problem - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Add to repair workspace
Open repair workspace
Original source
2 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHHeat-A/C problem - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Leading reported evidence

Replace cabin temp sensor

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster

I have changed cabin temp sensor with a used one that was claimed to be good but I had not tested.

Heat-A/C problem - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary

Leading evidence: 'Replace cabin temp sensor' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace cabin temp sensor' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 2 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Set temp

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome
1
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

If I manually set temp to "HI" I get full bore heat, but can turn fan speed down

Heat-A/C problem - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Performed · outcome unconfirmed

The net effect for me is that on auto I get full blast cold unless I set temp to Hi.

Heat-A/C problem - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed actions (2)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace cabin temp sensor

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster

I have changed cabin temp sensor with a used one that was claimed to be good but I had not tested.

Heat-A/C problem - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Set temp

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

If I manually set temp to "HI" I get full bore heat, but can turn fan speed down

Heat-A/C problem - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Performed · outcome unconfirmed

The net effect for me is that on auto I get full blast cold unless I set temp to Hi.

Heat-A/C problem - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.

2 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • 986Forum: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T122219Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

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?

POST 2Original post

I have something similar with mine. Have you done the diagnostics on the AC head unit. I had concluded that the sensor was probably faulty as the diagnostics showed the internal temperature reading to be way over what it actually was. The net effect for me is that on auto I get full blast cold unless I set temp to Hi.

This is a source reference. Confirm exact model applicability in the original material.