Errorr kernel SMC::smcReadKeyAction in Console I have OSX 10.9 Maverics on my iMac and I got this message (in Console) every few seconds:

kernel[0]: SMC::smcReadKeyAction ERROR TH0P kSMCBadArgumentError(0x89) fKeyHashTable=0x0xffffff802af9b000


Any idea ?
The culprit can be a fan controll program you may have previously installed.

To my knowledge there are two possible candidates (FanControl &amp; smcFanControl but there may be more that have the same problem).

You can verify if you have them installed and eliminate if needed.

NOTE: this problem is similar but not equal to this one Kernel SMC::smcReadKeyAction error The other one is for another version of OSX.



Procedure to check &amp; eliminate FanControl

Open terminal and search for FanControl:

$ ps -ef | grep -i fan
0   145     1   0 Gio12am ??         3:58.07 /Library/StartupItems/FanControlDaemon/FanControlDaemon run


This tell you that you really have FanControlDaemon running as pid 145 as PidNumber

To eliminate it :

$ cd /Library/StartupItems/
$ sudo rm -Rf FanControlDaemon/


and then kill the daemon:

$ sudo kill PidNumber


WARNING: if you replicate this procedure replace PidNumber with the PID you get from ps -ef 

This eliminate the messages for me.



Procedure to check &amp; eliminate smcFanControl

I also try to run the current version of another fan controll utility called smcFanControl (version is 2.4) and it seem to not work in Maverics (no window) but it produce near the same message in Console:

15/11/13 14:19:35,000 kernel[0]: SMC::smcReadKeyAction ERROR TC0F kSMCBadArgumentError(0x89) fKeyHashTable=0x0xffffff802af9b000


Note that for smcFanControl you got "ERROR TC0F" instead of "ERROR TH0P".

If you have this problem you can try to find and kill the process "smcFanControl" instead.

$ ps -ef | grep -i fan
501 45716   254   0  2:44pm ??         0:00.38 /Users/dave/Downloads/firefox/smcfancontrol_2_4/smcFanControl.app/Contents/MacOS/smcFanControl


If you find it then kill the rogue process as explained before.