Mid 2011 iMac 21.5" Temperature (TS2p) sensor above limit error

razorwoods

New member
Working on a MId 2011 iMac 21.5" and ASD reports Temperature (TS2p) sensor above limit error. Any pointers on where to start ?
 

razorwoods

New member
Should mention that the system boots normally, but after about 5 minutes the fans go on high and then about 10 minutes later the screen will go solid grey (no image). If left alone the display returns and the process repeats. The system never shuts off or reboots.
 

2informaticos

Administrator
Staff member
"Temperature (TS2P) -- S2 Camera Proximity "
Could mean the same as in MacBook Air 820-3437.
So check the cam, or its cable.
 

razorwoods

New member
Turns out this was due to some sort of "crust" on the board in the area of the camera connection to the Logicboard. I've seen this a couple of other times on iMacs where it looks like liquid damage but extremely light AND in an area that there's no way liquid could have gotten only there. Very strange but a light surface cleaning resolved the issue and it now passed ASD with flying colors.
 
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