Left Fan 000 rpm - disconnected or broken?

I installed CoreDuoTemp and learned that my MacBook is running at 80C with only a web browser running.

I then installed smcFanControl and saw that my left fan is running at 000 rpm. I'm assuming I have to open the machine to tell if it's disconnected or if I need to replace the whole thing? Is there any way to run a diagnostic before opening?

(The right fan is now set to run at a faster rpm and it's taking the temp down a bit)

Thanks in advance for your help.

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I think that the only way to make a real chekc is to open the MacBook

here is the guide for the left fan

maybe you could feel the airflow on the back of the computer (in this case - the missing air flow on the left side) - but the only real way is to open it

MacBook Pro 15" Core 2 Duo Model A1211 Left Fan Image


MacBook Pro 15" Core 2 Duo Model A1211 Left Fan Replacement

Difficulty: Difficult45 minutes - 1 hour

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It's quite easy to see the fans running and open the topcase without disconnecting it. You only have to tilt it a little to see wether the fans are running or not.

by remacberlin

Thank you. I'm running the right fan at a higher rate now to compensate as a temporary fix. It seems that the reserve battery is also dead. Could there be any correlation?

by hannahbireland

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hannahbireland will be eternally grateful.