Mystery connector

Hello again, I’ve found this cable at the back of the boiler under the EC328 unit, what is it and should it be plugged in somewhere. Many thanks. 

Its the tank level connector, see circled blue below.

Peter Brown wrote:Its the tank level connector, see circled blue below.

Thanks Peter I don’t know why it’s there like that, should it be plugged in

For the fresh and waste tank level indicators on the control panel to work, it needs to be plugged in.  It may have been disconnected to disable them or just dropped off.  Have you had the van long?

Peter Brown wrote:For the fresh and waste tank level indicators on the control panel to work, it needs to be plugged in.  It may have been disconnected to disable them or just dropped off.  Have you had the van long?

Thanks Peter, only had the van 3 weeks so finding lots of faults with it, first fault was loss of power going into limp mode, would I have to remove the EC328 to connect it or will the base of the wardrobe come out ?

If there is space you should be able to unscrew the unit and lay it on its front as in my picture, you may have to loosen the ties on the other connecting cables to do that but not necessarily.

This is speculation only, but I was wondering: how could this have come to be like it is? How could someone accidentally have disconnected it and got it (from appearances in the photo) on the wrong side of a wooden panel?

Which makes me think that maybe it was deliberate. Could this be someone's solution to a previous problem of the tank level monitor(s) not behaving correctly - perhaps sounding a "tank full" alarm when it isn't full? Time will tell, I guess...

Thank you very much for your comments and advice