The ECON button that controls A/C compressor has decided to stop working.

Currently the button shows no light which should mean AC compressor is switched on (I haven’t checked the MVB’s on VAGCOM to confirm this).

I have confirmed that the switch appears to work as when I press it the fans come on and then turn off when pressed again (however I don’t have the convenient light to tell me this).

So it looks like the LED / light isn’t working possibly due to bad wiring or connection? Not sure if LEDs can burn out or become defective?

The switch works but the indication light doesn’t.....

Any ideas what this might be?