Loud fan on acer chromebase after mrchromebox firmware update

Hi,

I have a few Acer Chromebase 24l2 devices (KARMA) that I’ve flashed with mrchromebox firmware util. After the flash the fan is blowing constantly while the temperatures are normal (40 to 45 degrees).

I think this is a bug in the firmware, all 5 devices that I have are giving the same result unfortunately.

Has anyone the same problem?