aqualisa quartz gravity shower

[j77drs]

I have this shower which works fine, the potential issue is that when the shower is off there is a dim blue light coming from the on/off power boost area,

this is very dim and only noticeable when the light is off,

should I be concerned ?

any ideas what could be causing this ?

 

[j77drs]

update -

the power boost button is not working and if pressed will turn the shower off, this is also the area where the dim light is appearing