Only thing you could try (if you haven't already) is switching off at the wall, leaving it for a few mins and start again.
Mine needed de-scaling the weekend as the red light had come on.
After de-scale and rinse the red light was still on.
Numerous dummy de-scales (no de-scaling solution) rinses, power on/offs at plug, and hours later, the light finally went off.
Keep trying I think they are temperamental.