I just realised that only the right fan is working, and I am really worried if I have a second corrupted fan

Question

Level 1

11 points

I just realised that only the right fan is working, and I am really worried if I have a second corrupted fan

Hello there,

sorry if my question is stupid, but I am wondering how many fans does my MacBook Pro 2019 13" have? I ran the diagnostic selftest while booting up my device, turned out that there were no issues at all. But I just realised that only the right fan is working, and I am really worried if I have a second corrupted fan...

Thanks

[Re-Titled by Moderator]

MacBook Pro 13″, macOS 10.15

Posted on Jul 15, 2020 5:16 PM

Reply

Answer 1

Top-ranking reply

Grant Bennet-Alder

Level 10

140,969 points

Jul 15, 2020 5:58 PM in response to bisher0707

Your 13-in model has only one fan, and only needs one fan because it does not have a heat-generating discrete graphics chip and private display RAM.

The diagnostic was written with features for every model MacBook Pro. The 15-in model has two fans.

Mac fans have a RPM (output) senior, so that their speeds can be observed and manipulated based on measured temperatures. The fans will speed up as more heat is generated.

If the diagnostic had found a dead fan, it would have called out the problem. Instead it generally shows the code for "No Fault Found". That is not exactly the same as "all is well" but it certainly does not indicate any issues.

Reply

Answer 2

bisher0707 Author

Level 1

11 points

Jul 15, 2020 6:11 PM in response to Grant Bennet-Alder

Thanks a lot for this info. I was really worried about that. But could you please explain more about the two codes "no fault found" and "all is well" and the difference between both of them. Because I always get the first one since the first day I opend my Mac.

Thanks,

Reply

Answer 3

Jul 15, 2020 6:27 PM in response to bisher0707

The diagnostic often shows the code for "No fault found". That is all that diagnostic software can conclusively say about the situation.

Users read that and assume it says "All is well". -- That is NEVER what it says. Remain skeptical.

Reply

I just realised that only the right fan is working, and I am really worried if I have a second corrupted fan

Similar questions