Discuss Getting hot water when central heating is on in the Plumbing Forum | Plumbing Advice area at PlumbersForums.net
It’s a Baxi boiler with cylinderHello. What type of boiler is it? Do you have a cylinder?
Not familiar, have added a couple of picsLikely that the valve with the big silver head that is at fault. You may have 1 or two of these valves, near the pump and or cylinder? Does this part sound familiar?
The mid position actuator is set at 'W', I'm assuming that means Water?Hi. I would look at the valve with the brass bottom and white head. Looks like a 3 port. Probably stuck in the mid position.
ok think I kind of get what your saying but, why do I have a timer box (not sure of the correct terminology), whereby I can set the time for hot water separately to the central heating To come on. Have attached image. I have also noticed that the actuator has now moved to ‘H’, whereas earlier it was set at ‘W’When say you have hot water when the heating is on. Do you mean the cylinder is still heating up whilst only in CH mode? I ask because you should have hot water regardless as to having the heating on or off. As you have a Y plan set up so you have a cylinder full of stored hot water, ready to use throughout the day as & when required and is normal. If however your cylinder is heating up when not in hot water mode then your 3 port motorised valve is more than likely to be faulty and not responding to commands.
Thank you, I will get it changed to an S plan. I’m away from home a lot during the winter, therefore would not use the hot water, the only thing that I want running in the winter is the heating. Are you able to confirm roughly the going rate to change to a S plan.It is controlled by the timer and the thermostats, but yours being a mid position valve means that if cylinder isn’t up to temperature you will get it to heat cylinder as well. Hot water always gets priority. Only way to change this would be to change valve or make it into S plan system
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