Just fixed mine! The two or three tabs on the base unit need to depress when the jug is installed - mine were not because part of the plastic broke off on the bottom of the jug! So I jambed a couple of small pieces of plastic in to depress the two contacts on the base - one also worked - and put a little glue in to hold and and presto - the blinking light is off!!! You can test if this is the problem by using a very small screw driver and pressing down on the base contact - once you do the power should not flash - if so, you have solved the problem and likely the jug base is broken - really poor design - likely broke off when taking it on and off?
Now when the jug goes on it works - this may not be the safest solution but it works - check the base of the jug - maybe yours is broken off as well? I am going to order a new one.