Descaling Problem SOLVED!
Folks, I really hope this helps a lot of you. I too encountered the dreaded descaling problem where it gets stuck in a loop and never finishes. I thought the machine was toast and see so many reviews that people experienced this and had to return the machine.
I tore apart the machine and figured out the issue and the super simple fix!
What happens is the water level sensor does not know it is running out so when the tank empties due to running dry, it never completes the cycle.
Where the water basin goes, if you look at the back lower down, you will see a small rectangular protrusion. This is the water level sensor that works by measuring capacitance. You know how sometimes your machine runs completely out of water and you have to prime it with the tea/hot water button? This is why! When you put the tank in full, water splashes over the edge and down the back. It coats the outside rear of the tank and the sensor with water so the machine thinks it still has an adequate level of water but then all of a sudden runs dry.
Take a paper towel and dry off the water level sensor and the back of the tank. When you put the tank in, do not fill it too high and put it in gently to avoid water spilling out.
Simple as that...fixed!
and videos and help from Philips
Press and hold (for about 6 seconds) the hot water button until the descaling light turns off.