I know there's a hundred posts about the iMac fan but I haven't found a solution. No, unplugging for 15 seconds doesn't work, command option P R doesn't work, Macs Fan Control doesn't work, the local Mac genius couldn't figure it out and the geek squad said to throw it out and buy a new one. Anyone have anything else to try?
iMac 27″, macOS 14.6
JoeCB1980 wrote:
You're right, it is a 2020. Pretty sure I bought it in 2022 though.
Either way, the fan's f'd up.
Take a Shift+Command+4 screenshot of the MacFanControl panel and post it using the Image insertion tool.
Take a screenshot on Mac - Apple Support
Has the iMac been worked on, as in had the HDD replaced or some other component replaced...?
A failed, disconnected or missing temp. sensor will cause that problem.
What does the MacFanControl panel show for the temp. sensors..?
Are any in red or have a - mark instead of a temp. reading.
In order for a NVRAM reset to fully work, it must be done at least 2x back to back. If the computer is a 2017 or older, I agree it's time for a new machine as yours is obsolete and classified as a vintage machine.
It's never been worked on. The temps all look fine. The Mac fan control shows 0 rpm, but the fan will be at full speed.
It's a 2022 model. Figured it'd last longer than 2-3 years.
JoeCB1980 wrote:
It's a 2022 model. Figured it'd last longer than 2-3 years.
There was no 2022 iMac. The last 27" iMac was in 2020.
You're right, it is a 2020. Pretty sure I bought it in 2022 though.
Either way, the fan's f'd up.
FWIW, Apple & Authorized Apple Service Providers still repair 2020 Macs, so if you're will to pay for service…
iMac fan running wild
