Fan speed randomly switching between 0% and 100% regardless of actual temperature

I have an 11th gen laptop with an i5-1135G7 running Windows 10, version 2004, build 19041.1415.

Recently the fans started misbehaving. They will pingpong between completely inaudible and as loud as I have ever heard them, at seemingly random intervals, regardless of what the laptop is doing. They even continue doing this while the laptop is put to sleep, the lid is closed, and the whole case is cold to the touch. This behavior persists past a system restart.

I looked at the CPU temps using Core Temp and they seemed normal, hovering around 40C when I checked. Other than that I’m not sure how to find more information about what could be going on.

What can I do to diagnose and try to fix this issue?

Have you cleaned the fan?

I have a dell laptop with 11 gen intel i5 and i get the same symptoms. I think these chips were just poorly made with regards to thermals.

Im having the same issue the fan doesnt have a middle speed range anymore. Im currently trying order a replacement.