I recently bought the Acer Aspire A315-58.
It appears to have a serious power management defect - when it goes into 'sleep' or 'hibernate' mode, the fan keeps running continually. It then won't wake from sleep / hibernate - the screen just stays blank. Using the touchpad / keyboard / power key won't wake it. You have to do a 'hard' shutdown by holding down the power key. This happens every single time.
Here's a video:
https://photos.app.goo.gl/pAtad9bnjLNuLrnz7You can hear that the fan comes on for approx a second, cuts out for about a second, and repeats, constantly. It never stops.
Please advise if there's an obvious fix - but I think it may need to be returned.