Sensors configuration

If I enter sensors in my xterm on KDE2 on my SuSe 7.2 I get a nice overview from the values that the sensors calculates. Now I have only a cpu fan connected. (Do not know why the transformer fan is not connected- think it was not a compatible fan). The values for the fan1 and fan3 are zero. According to the reading material the info for these two fans can be prevented by editing the sensors.conf file. Looking at this file I could not doctor out how to do that. Somebody can ive me help?