Why add water light comes an nothing after that

I fill the reservoir with water turn the power button on and the blue light comes on and says add water. I repeat process and nothing happens. I have check sensor and other ports and still it just says add water…. can you help

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May or may not be of help:

https://www.kitchensanity.com/coffee/com...

Search for the terms "add water" and "float magnet" There is a video available too.

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