MacBook Pro Fan just started to make a lot of noise.This is a MacBook Pro 15 inch 2.4/2.2GHz purchased June 2007. Is this something that most people can replace or does Apple need to fix it or is it time to get a new one base on age and potential repair cost?
MacBook Pro, Mac OS X (10.6.8)
Your Mac uses measured temperatures to determine fan speed in a feedback loop.
Racing fans are an indication that your Mac is overheating, or a temperature sensor is not working properly. Replacing the fan will not fix the problem.
Your appointment for an evaluation at the genius Bar of an Apple store is free, in warranty or out. There is no obligation to have them do any work for a fee, but if you choose to, charges are generally flat rate for guaranteed repair, no surprises.
If you recently replaced components, such a RAM DIMMs, with parts that do not have Apple-approved temperature sensors, that can also cause such problems.
Grant, Thanks. Sounds like my next move is to get it in for evaluation quickly before the fan dies. If it is indeed racing that will shorten the fan life. I replaced the Ram years ago so that is not likely the cause. When computer goes into sleep mode fan shuts off which makes me think it is not overheating. As you stated more likely a sensor. Anyway thanks again. Terry Molloy
An Apple Hardware Test may find the reason for the fan problem:
http://support.apple.com/en-us/HT201257
Note an error free AHT is not definitive.
Ciao.
Hi you could also do a SMC reset. But if this does not fix it you will still need to have it looked at. http://support.apple.com/en-us/HT201295
MacBook Pro Fan is very loud overnight. How are they replaced?
