Systemate 2000 with multiple faults

Hi, I have a Gledhill Systemate 2000 with multiple faults and I could really use some advice on whether or not it is worth repairing or if I should replace it with a normal hot water tank.

The Systemate has been acting up for a while, not calling for heat from the boiler even with the heatings on full, one of the pumps runs non-stop (the one on the right), and now it appears there is a leak coming from inside. we've been using the emergency switch for hot water but this also sends heat to the radiators sometimes.

Can anyone please suggest what they think may be wrong with it, whether or not it can be fixed, and if it could how much would you'd expect it to cost?

I'd really appreciate any help/advice anyone can give as at the moment I think I'm probably going to have to replace the whole system.

Thanks in advance, Tom

Well Tom if the unit is leaking.
Game over!
Mike
MGC/H2O
Norfolk

Thanks for the reply Mike, I had a feeling that was the case.

Tom