fullymatted.
Back to search
Rennlist

Radiator Fan works in Stage 1 but not stage 2

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

Discussion summary

YOUR RESEARCHRadiator Fan works in Stage 1 but not stage 2

Leading reported evidence

Replace fans and resistor packs

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

When mine went I just replaced the fans and resistor packs for peace of mind.

Original post Read captured discussion
Radiator Fan works in Stage 1 but not stage 2
Frequently discussed work

Replace fan or can the resistor be the cause

No successful repair reported for this finding.

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

Do I need to change the fan or can the resistor be the cause?

Original post Read captured discussion
Radiator Fan works in Stage 1 but not stage 2
Read full discussion summary

Leading evidence: 'Replace fans and resistor packs' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'resistor pack' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Replace fan or can the resistor be the cause' (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 · 3 captured posts examined · 0 partial discussions

Compare 4 other evidence results

resistor pack

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
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 suspect a cause
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.

Suspected cause

Most likely the resistor pack.

Original post Read captured discussion
Radiator Fan works in Stage 1 but not stage 2

Replace fan or can the resistor be the cause

Suggestion or failed attempt

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 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

Do I need to change the fan or can the resistor be the cause?

Original post Read captured discussion
Radiator Fan works in Stage 1 but not stage 2

Run when stage 2 is engaged

Suggestion or failed attempt

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 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

After testing the fans I identified that the drivers side one only runs when the Stage 1 is on, but stops running when stage 2 is engaged.

Original post Read captured discussion
Radiator Fan works in Stage 1 but not stage 2

Test fans i identified

Suggestion or failed attempt

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 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

After testing the fans I identified that the drivers side one only runs when the Stage 1 is on, but stops running when stage 2 is engaged.

Original post Read captured discussion
Radiator Fan works in Stage 1 but not stage 2
Frequently discussed actions (4)

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

Replace fan or can the resistor be the cause

No successful repair reported for this finding.

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

Do I need to change the fan or can the resistor be the cause?

Original post Read captured discussion
Radiator Fan works in Stage 1 but not stage 2

Replace fans and resistor packs

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

When mine went I just replaced the fans and resistor packs for peace of mind.

Original post Read captured discussion
Radiator Fan works in Stage 1 but not stage 2

Run when stage 2 is engaged

No successful repair reported for this finding.

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

After testing the fans I identified that the drivers side one only runs when the Stage 1 is on, but stops running when stage 2 is engaged.

Original post Read captured discussion
Radiator Fan works in Stage 1 but not stage 2

Test fans i identified

No successful repair reported for this finding.

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

After testing the fans I identified that the drivers side one only runs when the Stage 1 is on, but stops running when stage 2 is engaged.

Original post Read captured discussion
Radiator Fan works in Stage 1 but not stage 2
Reported and suspected causes (1)

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

resistor pack

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
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.

Suspected cause

Most likely the resistor pack.

Original post Read captured discussion
Radiator Fan works in Stage 1 but not stage 2
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.

3 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.

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

Generation: 20261027T082735Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi I have been searching unsuccessfully for an answer through all the fan related threads. Apologies if I missed the answer to my question! After testing the fans I identified that the drivers side one only runs when the Stage 1 is on, but stops running when stage 2 is engaged. I understand that if stage 2 works but stage 1 does not, it can be fixed with the resistor replacement, but I cannot find if the same applies for the opposite scenario. Do I need to change the fan or can the resistor be the cause? Thanks in advance!

POST 2Original post

Most likely the resistor pack. If o recall Ot is temperature dependent. When mine went I just replaced the fans and resistor packs for peace of mind. This was almost 2 yrs ago now so prices may be higher today. This guy on renntech had the easiest how to and troubleshooting guide. May be a cheap fix if you can solder and are handy. I’m on a mobile device so don’t have much more detail. Hope that helps. Link. https://www.renntech.org/topic/40839...-step-by-step/

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