Vokera excel 25, no hot water. Not sure about the fault code.

[garnet]

Hi all,
My vokera excel 25 stopped producing hot water.
I am not sure what the error code indicated by the red, yellow and green light is.
I noticed that pressure is at 0. Could this be the issue?
On the video after 3 min I got solid red light.
This is the video on how the boiler starts.
Amy ideas now what error code is that and what does it mean will be appreciated.

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[CountryFan]

A lack of water in any combi boiler usually stops the hot water working by means of a low water pressure sensor. Top up the pressure and see if that works. Can’t see the video, but could be my internet being slow.

 

[garnet]

Topping up the pressure sorted the problem.

However I can see a solid yellow light on and a green light blinking.

No such combination of lights is described in the manual.

Blinking green light means stand by. And when hot water is needed boiler shows solid green light and solid yellow light.

Any idea what the yellow light means?