I really hope someone sees this soon. I've moved into a new flat in the last two weeks. The hot water delivery would occasionally give a really strong burst but generally, was flowing at a normal rate.
Suddenly, tonight, the hot water flow is a trickle and I can't hear the pump come on. I'm by no means an expert on plumbing, but I'll try to describe what there is. I have my own tanks in the flat and a non-combi boiler. There are three pumps, a Stuart FLD-25 and two Grundfos, Super 4/120W and UPS 50 15x18. My limited understanding is that the Stuart is for the hot water, but that could be very wrong.
There is a "master" switch for the booster pump - what the point of it is I don't know but I tried flicking it off then on - no difference.
Anyone have any idea what could be wrong? Is there any diagnosis that I (a plumbing moron) can try? Lastly, is this going to cost me a fortune?
Any help gratefully received as I'd like to shower tomorrow!