We have a Vaillant combi boiler, sorry I don't know what model it is hit if that's important I can find out. It is about 5 years old.
For quite a while now there's been a problem with the hot water, in that it will just decide to not work when you turn on a tap or shower. There is no error code, it just doesn't seem to register that we want hot water. The only way to remedy it is to reset it. It then seems to work again, until recently when it will work for a minute or two before cutting out again, when the water becomes not stone cold, but I certainly wouldn't call it warm either.
We've had the plumber round, who has checked the heat exchange, which was fine but cleaned it anyway. He also replaced something else as well, but again sorry I can't remember what it was, if you need to know, ask and I'll find out. Occasionally after multiple resets it displays f22 error code, which is low pressure, and obviously rubbish as the pressure guage read fine.
One other thing... A little while ago one of the rubber pipes inside burst, throwing hot water over everything. We had it replaced and cleaned and it does work in every other respect, like the timer and central heating.
Any suggestions would be greatly appreciated, and sorry the explanation was so long!!
For quite a while now there's been a problem with the hot water, in that it will just decide to not work when you turn on a tap or shower. There is no error code, it just doesn't seem to register that we want hot water. The only way to remedy it is to reset it. It then seems to work again, until recently when it will work for a minute or two before cutting out again, when the water becomes not stone cold, but I certainly wouldn't call it warm either.
We've had the plumber round, who has checked the heat exchange, which was fine but cleaned it anyway. He also replaced something else as well, but again sorry I can't remember what it was, if you need to know, ask and I'll find out. Occasionally after multiple resets it displays f22 error code, which is low pressure, and obviously rubbish as the pressure guage read fine.
One other thing... A little while ago one of the rubber pipes inside burst, throwing hot water over everything. We had it replaced and cleaned and it does work in every other respect, like the timer and central heating.
Any suggestions would be greatly appreciated, and sorry the explanation was so long!!