Issues with Megaflo cylinder

[Colalok2002]

I am using a megaflo cylinder at my flat, and as lately I am using more of the heating it is starting to act odd, to start with the hot water is getting less hot day by day, and as of today my floor heating stopped working.


Meanwhile, the pump outside the cylinder (picture attached) just keep working for the whole day, which it would only turn on after I use the shower etc before....

can anyone advise on what is wrong with it? And what to do with it?

 

[gmartine]

Mmm....I wonder why you've had no responses in three days, there's a huge clue in the picture.