Macbook Pro 15 2017 Left Fan spinning at max RPM (6900 RPM)

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Macbook Pro 15 2017 Left Fan spinning at max RPM (6900 RPM)

From startup, the left fan on my MBP would ramp up to 100% and stay there. No apps such as SMCFanControl or TG Pro would be able to override the fan speed. TG Pro showed that all sensors are well and Apple diagnostics return the error code PPF04. So I suppose, this isn't a sensor issue and a fan issue? I just need to know wether it is a sensor issue (logic board related, which would cost too much that it isn't worth it) or just a faulty fan (which is cheap to replace).

MacBook

Posted on Aug 19, 2020 3:39 AM

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Answer 1

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kaz-k

Level 8

49,212 points

Aug 19, 2020 4:57 AM in response to andrewwilliam26

Hi,

PPF004 means there may be an issue with the fan.

https://support.apple.com/en-us/HT203747

You would need replace your fan at nearby Apple retail Store if it is open or find and take your MacBook Pro to opened neighborhood Apple Authorized Service Provider to be examined it.

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Answer 2

Aug 19, 2020 6:01 AM in response to kaz-k

Is the issue only caused by the fan, or it might be a faulty temp probe?

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Answer 3

kaz-k

Level 8

49,212 points

Aug 19, 2020 10:20 AM in response to andrewwilliam26

Hi,

I think it's caused by only faulty fan , you need to replace it.

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Macbook Pro 15 2017 Left Fan spinning at max RPM (6900 RPM)

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