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Original post by: arbaman ,


Same result after a clean install points to a hardware issue. Being a pretty recent Mac I’d find it strange if it was the battery but one never knows and I’d recommend downloading and installing Coconut battery and post a couple of screenshot adding them to your original question: [guide|21499]

Other than that we get into board issues, had an Air for repair not long ago that had a faulty CPU current sensing circuitry giving exactly the same kind of issue. Try opening up your Activity Monitor in Utility folder, select it to show “all processes” and post what it is you see keeping CPU busy all the time. I’d bet on “Kernel Task” in this case..