Every 8 days when in sleep mode my fan runs up to high speed.  Have to shut down to stop it.  Tried SMC reset no use.  Even powered down for a day when speed up was due, 8 days later ran up to high speed when asleep.  How do I fix this

I was previous running Lion but upgraded a week ago the Mavericks but the fault it still there.    Nearly always happens in middle of the night as when I get up in the morning fan is running at high speed.

Try the troubleshooting steps using the Test Account. The theory is if the Test Account works OK then you know you have an issue with your standard user account. If the problem persists with the Test Account then you know it's a global issue and can begin eliminating items. I would start by eliminating non essential peripherals such as printers, time machine etc. You may find you have a problem with one of those or some app or some setting.

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