fan won't stop on aluminum MacBook

[matthewscott661]

I had smcfancontrol installed, but I recently took it off because I never used it and I don't like having all those extra things taking up space.

I uninstalled it using appcleaner to make sure it was totally gone, but now my fan won't turn off. Ever. It worked like normal when the app was installed, only turning on when the cpu heated up, but now it's chugging along at 3500rpm constantly, from the second I boot it up. How can I get it to go back to normal?

I've tried resetting pram and smc, both to no avail. Any suggestions?

 

[jav6454]

I had smcfancontrol installed, but I recently took it off because I never used it and I don't like having all those extra things taking up space.

I uninstalled it using appcleaner to make sure it was totally gone, but now my fan won't turn off. Ever. It worked like normal when the app was installed, only turning on when the cpu heated up, but now it's chugging along at 3500rpm constantly, from the second I boot it up. How can I get it to go back to normal?

I've tried resetting pram and smc, both to no avail. Any suggestions?

Re-install smcFanControl and re-establish the fan speed at 2000rpm. The delete smc

 

[CalMin]

Is your battery life low? Try opening activity monitor and see what's running. You probably have a rogue app. I just fixed this problem for my niece who had a hung lexmark driver.

 

[matthewscott661]

no luck

I reinstalled smcfancontrol, and put the min speed at 1800rpm, the lowest possible, but the fans is still ALWAYS spinning. Before I used this app it would only turn on when the computer heated up.
It's not affecting battery life and I can hardly hear it when it's that slow, so I guess I'll just have to live with it.

 

[John01021988]

Of course it will ALWAYS spin, minimal fan speed is @ 1800. Maybe before you did not listen to it, but as far as I know, fans are always spinning. I've set mine @ 3000rpm just to keep my macbook cool, somehow I always like to see the temperature between 50 Celsius and 56 Celsius when browsing and emailing.

 

[spinnerlys]

An SMC reset might do the trick:


1. If the computer is on, turn it off.
2. Disconnect the AC adapter and remove the computer's battery.
3. Press and hold the power button for 5 seconds and then release the button.
4. Reconnect the battery and AC Adapter.
5. Press the power button to restart the computer


from http://support.apple.com/kb/HT1411

 

[matthewscott661]

Yeah I tried restting SMC already but it didn't change anything.
How do I know if the reset worked?

@John maybe you're right and I just didn't notice it before.

 

[NewMacbookPlz]

Yeah I tried restting SMC already but it didn't change anything.
How do I know if the reset worked?

@John maybe you're right and I just didn't notice it before.

3500rpm is not the normal idle. So long as CPU temp is <75C or so, it should be spinning at 2000rpm with factory settings.