Mac fan is running loud all the time
A loud fan means something is making your processor work hard. Open Activity Monitor, look at the CPU tab, and sort by percentage. Whatever shows the highest number is what's using all the power.
Mac fans speed up when the processor gets hot, which is totally normal. But if the fan runs constantly, something is making the processor work when it shouldn't be. Activity Monitor shows you exactly what's running and using CPU power. Once you find it, you can close it or fix the settings causing the problem.
Fix-IT-Bot will walk you through each step — just tap, no typing needed.
Skip — I just want a technicianCommon mistakes to avoid
- Assuming the fan itself is broken when it's really just doing its job
- Using MacBook on soft surfaces like beds, which blocks airflow
Signs you need professional help
- Activity Monitor shows normal CPU but the fan is still very loud
- You think there's dust inside the Mac and want professional cleaning
- The fan noise is connected to a recent liquid spill or drop
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