no water!

[NK5567]

No water at all from hot taps, cold is fine, as is the heating system, any ideas?

[NORMANTHEDOG]

is it a combi boiler,if so the hot water valve is the problem

[NK5567]

Its a system with a tank, the tank fills, the water gets hot, as do the radiators and I have ample pressure from the cold taps but NOTHING AT ALL from the Hot... Any ideas

[ACB312]

Have you a header tank (probably in the loft) that fills, and should provide the cold feed into the bottom of your hot tank? If the ball valve in the header tank is stuck shut or blocked then you will get no hot water from your taps but the flow would have slowed down and possibly have gone a bit brown before dying out. If access to the header tank is easy, have a look and see what level of water is in it - should be about three quarters full. Try gently moving the ball valve about a bit and flow may start again. Post your result here and I'll try and work out problem.

[marcus5771]

Water boilers must always have a constant mains flow. It must not have the flow from the tank.

[ACB312]

Marcus5771 - I think there may be some confusion here. I was, hopefully, describing the symptoms if the hot tank was fed from a header tank. The boiler could also be fed from a separate header tank - as is my own system. I understand combi boilers need a supply at mains pressure. The original question did not specify what type of system was in use.

[Jay70]

When you say cold is fine I take it you have tried a cold tap that is not on the rising main (i.e kitchen cold tap)?

[Jay70]

Toops - that should be (i.e. not the kitchen cold tap)

[paule1]

we had this problem, it turns out that the plumbers fitted the hot and cold pipes the wrong way round