I have a deco x20 3set. Today I noticed the one which is the fardest away from the main module has a flashing red light. I have taken it downstairs to the main module to have the best connection, but nothing changed.

I have tried to reset it with the reset button, but still no change. Also unplugging the power for 2 hours did not change it.

So it does not look like a connection issue, but something in the module.

Does anyone has a solution?