Replacement for Showerforce Boost Shower

macgyver

I had Showerforce Boost Shower installed in bathroom when I bought my house three years back. It has now stopped working. The water is still coming out of the shower head but not at a force and I cannot hear the pump running.
It is connected to a isolating transformer in another room (see pictures)
The lights light up when I turn it on but no noise of the pump and no pressure is generated.
When I turn on the shower the green light is on as was happening before.







I called up the company which manufactures these and they say they don't do anymore and it is obsolete.

I was wondering if anone knows a pump which is direct swap or an easy replacement.
The problem here is that present pump runs on a DC (the transformer converts AC to DC) rather than AC.

Thankyou for looking