I just moved into our new home at the end of June. Showers were working very well, even when we had all 3 running a couple of weekends ago when friends were visiting. The day befirre yesterday the showers starting running cold and not warming up at all even though the water from the taps is still scolding hot. We have Valiant combi-bolier (I-think) in the airing cupboard next to a large immersion tank and 2 separate Honeywell thermostat remote control programmers - one for water and one for central heating I think? As a side note I can't get the central heating on - and when I turn the heating control on the water control stops working? Do the showers run separately from the genral hot water? Can anyone help?
