820-2641-the accelerated cooler

[iClub]

Hello my friend, I have this iMac that by turning on the cooler already accelerates, I have analyzed the sensors, installed the HWMonitor and only the PCH has a higher temperature of 50 degrees Celsius. I don't know what to do, could you help me?

 

[2informaticos]

HDD and LCD temperature sensors connected for sure?

 

[iClub]

are connected for sure, we use another one to check, but I'm still on the accelerated cooler.

 

[2informaticos]

Fan starts at max speed, or increases in time?

 

[iClub]

after 30 seconds the cooler is at maximum speed.

 

[2informaticos]

Try disconnecting camera, J4700.
Run ASD EFI and see if any error pops up.

we use another one to check"
Another what?
Board, LCD, HDD?

 

[iClub]

use another LCD and another HDD from another iMac.

 

[2informaticos]

Did you check if the LCD temp sensor is attached to the screen?
Run corresponding ASD and report...