Most likely low gas, but could also be another malfunction. Usually EC mode can be disabled by pressing the button. If not, then there is a problem with the system preventing you to turn on the compressor (A/C). Often this is caused by a low system pressure/lack of freon.
Here is a good post explaining the built in diagnostics of your style A/C controls (Post #2 of this thread).
--Zax
Here is a good post explaining the built in diagnostics of your style A/C controls (Post #2 of this thread).
--Zax
