Fan continuously on. Only switches off when off or in sleep mode

iMac fan continuously on.Only switches off when in sleep mode or actually powered off


Posted on Jun 10, 2020 3:12 AM

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Posted on Jun 10, 2020 5:52 AM

Have you done a PRAM reset, CMD+Option+p+r...


http://support.apple.com/kb/HT1379


In fact, do 3 in a row, takes a bit of time.


Intel-based Macs: Resetting the System Management Controller (SMC)...


http://support.apple.com/kb/HT3964

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Fan continuously on. Only switches off when off or in sleep mode

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