sometimes fans run on max till battery drains when MacBook Air (Intel) is put to sleep if Macs Fan Control running

[o5t6iaqo7]

Macs Fan Control was working as expected on this MacBook Air 13" 2020, i3, with macOS Ventura. I recently updated to macOS Sonoma 14.3 and then 14.3.1, and in both versions there is an intermittent issue:

• Macs Fan Control works properly when the computer is running
• if I close the lid to put the device to sleep, or, if manually select Sleep and then close the lid, the fans then run on maximum until the battery depletes
• however, if I first Quit Macs Fan Control, and then put the computer to sleep or close the lid, it sleeps properly (no fan running or at most for a couple of seconds then quiet, battery does not drain)
• this is intermittent - sometimes with Macs Fan Control running it sleeps fine -- but reliably, if it happens and I open / wake the MacBook Air and quit Macs Fan Control, then close the lid / select sleep, it goes to sleep normally
• I always have MFC auto-run on startup/login
• lately the issue has occurred less frequently so it may be difficult to do trouble-shooting, I did not make any system changes or other app installs and the room ambient temperature / desk temperature is warming as I'm in the northern hemisphere (I use this device on a marble table which is normally cool to the touch)

Since I keep the fans at an RPM that I can't hear, I understand the CPU is running slightly hot and may shorten its life, and so when the device sleeps if Macs Fan Control stops a few seconds of high speed fan to cool it off by the macOS controllers makes sense and is fine - but, as I mentioned, when the issue occurs, the fans just keep running "interrupting" sleep unless I manually quit MFC. And this particular mac model - the fans are very annoyingly loud so often, I definitely want MFC running when I'm using it!! MFC is great I couldn't use the computer without it the fan noise is so irritating on this model. I also have both a 2014 MacBook Air mini and a 2022 M1 MacBook Air and don't use MFC on either as the fans are not annoying. The 2020 i3 is dreadful without MFC.

MacBookAir9,1_tech_info.zip

[o5t6iaqo7]

hello? is anyone here? I also emailed support@crystalidea.com on April 9, but didn't get an answer yet

[kleuter]

Sorry for the late reply, please try using the latest beta version and post logs from it. Thank you
https://github.com/crystalidea/macs-fan-control/files/13905175/macsfancontrol.zip

[o5t6iaqo7]

This beta version appears to have solved the issue, it working well now, so no need to post logs! Thank you.

[o5t6iaqo7]

I wrote too soon. Fans just started running on high again after putting macbook air to sleep. I will have to download logs later too busy now.

[o5t6iaqo7]

The problem persists despite the beta. New tech log attached. Again the issue is: Pro version works properly when MacBook Air 2020 Intel i3 is open and running. If I put the MacBook to Sleep, or close the lid to go to Sleep (both), after a few seconds, the fan then runs on maximum indefinitely if Macs Fan Control Pro is running in background.

MacBookAir9,1_tech_info.zip

[kleuter]

Please try the most recent beta (build 63)
macsfancontrol.zip