new imac fan will not turn off

[wizzerandchips]

have a new 24" imac, about a year old and the fan came on after it got very hot, only browsing the web) and now it wont turn off!, switched off mac last night, turned it on again this morning and fan is spinning like a goodun.

 

[BlueRevolution]

Sounds like your temperature sensor may be acting up. I'd take it in to the shop.

 

[xodus]

There might just be a process that is hogging your CPU.

Open /Applications/Utilites/Activity Monitor

Change from "My Processes" to "All Processes"

Sort by CPU (Decending) and see if any process is over 80%. If so, quit it. Or force quit.

OR

/Application/Utilities/Terminal

type in "top" (no quotations) and hit enter

If any process is taking a serious % of your CPU then type

killall <nameofproccess>

e.g.: killall Firefox


Another tip is download iStats Pro: http://www.islayer.com/apps/istatpro/

This will tell you exactly what part of your machine is the hottest.

Good luck!

 

[wizzerandchips]

There might just be a process that is hogging your CPU.

Open /Applications/Utilites/Activity Monitor

Change from "My Processes" to "All Processes"

Sort by CPU (Decending) and see if any process is over 80%. If so, quit it. Or force quit.

OR

/Application/Utilities/Terminal

type in "top" (no quotations) and hit enter

If any process is taking a serious % of your CPU then type

killall <nameofproccess>

e.g.: killall Firefox


Another tip is download iStats Pro: http://www.islayer.com/apps/istatpro/

This will tell you exactly what part of your machine is the hottest.

Good luck!

thanks, have got istat and clicked on fans and is blank, so must be a problem, done all what you have said and nothing is over 6%, so its a trip to apple.

 

[champagnetaste]

Your advise worked for my Mac

Thanks for the advise. I followed it to the letter. My Mac is sweet and silent now. Whew!

 

[DoFoT9]

it does sound pretty bad for you, sounds like the fan might be dead (or the heat sensors or something related). get that checked out asap