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Mid 2006 / model number A1181 / black or white case / 1.83 or 2.0 GHz Intel Core Duo processor.

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Loud noise! error 4mot/1/40000002:center_lower-front

My MacBook 2GHz Intel Core Duo has been making an extremely LOUD noise that seems to originate from beneath the top center of the keyboard. It sounds like an airplane motor! The laptop does tend to run quite warm, though this has always been the case since before the noise presented it's awful self. I assume there is something wrong with the fan? Everything else seems to be working normally.

I ran an apple hardware test and received error code 4MOT/1/40000002:center_lower-front

I do not have applecare - is it safe to assume installing a new fan might fix the problem? The help desk at apple quoted me $700 to open it, diagnose and fix the problem, but the purchase of a new fan is only about $50 on ifixit.

Any suggestions or insights would be greatly appreciated!

- Erin

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That's the code for a broken fan- just purchase this fan and follow the linked step-by-step installation guide. Good luck!

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Thanks, rab777hp! I'll post my results here once I receive and install my new fan!

- e


I ordered the fan & spudger, followed the step-by-step MacBook Core Duo fan installation guide and am now typing this from my noise-free MacBook! THANK-YOU ifixit! I'm so impressed with myself! This has been my first experience opening up and fixing my own computer. I found the step-by-step instructions extremely easy to follow. Yay!


I had the same loud clacking fan and purchased the replacement here. The delivery was fast, the online instructions were clear (print them out before you start), and I'm now working from a cool and quiet MacBook. Thank you for excellent service.


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erinblythe will be eternally grateful.
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