820-00850 Left Fan Won't Turn off and runs full speed

CRC2018

Member
So i got an 820-00850 in today - was originally fully shorted out stuck at 5V which I identified to a burned cap. Now the board turns on and works fine but the left fan as looking at it from the bottom runs at absolutely full speed (right one working normally) and also continues to run after the machine has been shut down.

Customer has clearly either taken this machine somewhere else or played with something themselves also as both the screen cable and the touch ID cables were ripped when I got inside. Cannot see any other visible issues however.

Is this a board issue, fan issue or something else?
 

CRC2018

Member
Nailed it thanks! Q6000 was missing as was a couple of resistors next to it. Replaced from a donor board and fans behaving normally now. Just got to sort out the customer with a new Touch ID flex cable!
 
Top