Engine EGT High

When I am flying the MD11, I get a yellow warning on the engine display that reads ENG EGT HI for the three engines. The EGT reading fluctuates between yellow and red in the EAD. Also the word Air (in yellow) flashes in the lower right corner of the engine EAD.When I look at the overhead panel nothing is lit, there are no warnings, which means that all buttons are pressed and working properly.This happens when I load the panel with engines already running and ready to go.I looked in the manual but I could not find this especific warningresolution.What am I doing wrong?Thanks for your assitance.Sergio