Imac A1418 late 2013 21.5" fan runs at max speed

[tyl85]

Hi, i have this iMac issue
I've checked temperature by using macfans with no results
techtool pro shows me AMBIENT AIR TEMP FAULT
i'm going crazy, the mac runs very slowly
where i can find this sensor on motherboard?
thanks in advance

[Aliencomputres]

Hi, i have this iMac issue
I've checked temperature by using macfans with no results
techtool pro shows me AMBIENT AIR TEMP FAULT
i'm going crazy, the mac runs very slowly
where i can find this sensor on motherboard?
thanks in advance

[tyl85]

Mine does not have this fan sensor

[mon2]

https://logi.wiki/index.php/iMac_HDD..._Sensor_Bypass