On the front LCD panel we display three values for each of the temperature sensors. They are "Current", "Warn" and "Error".
If you are connected to the chassis with the GUI when any of the sensors reaches the 'Warn' level, a message will be displayed in the Log section at the bottom of the GUI.
The threshold values may be different from sensor to sensor because the sensors are measuring different functions. For example, the L1-1 sensor is built into one of the larger integrated circuits and does usually read much hotter than the BP1-x sensors. All values are in Centigrade.
NOTE: If you are experiencing a real error condition then it is advised that you discontinue use of the chassis and turn off the power until the issue is resolved because some of the test modules inserted in the chassis may be damaged by the elevated heat.