Every light blinks and it won't heat water a braun tassimo coffee maker

Just posted this solution to another problem. there is something on the glass bar code reader up where you insert the t-disc - or the water vessel is not properly seated in the base of the coffee maker.

Check both.

I had the same problem and found minute pieces of the foil when piercing the pod had stuck inside the piercing device and remained there even after washing they had to be picked out with a needle and then everything worked ok .Give it a try !