I have an iMac, the 27 "Office 2013.  Whenever I turn it on now the cooling fan begins to operate.  How can I stop this?

I have an iMac, the 27 "Office 2013.  Whenever I turn it on now the cooling fan begins to operate.  How can I stop this?

You must first check for any failure of equipment. Please use this section of Apple:

Apple Diagnostics using - Apple Support

to run the Diagnostics from Apple on your computer and reprot back here if there is no result.

You can also do an SMC reset seeing weird fan behavior:

Reset the management system (SCM) controller on your Mac - Apple Support

Tags: Mac

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