How can i fix the problem of no hot water?

Forgot to say that the part will cost just over £100 and then you need to get a corgi plumber to fit.

Is there low pressure in the system - is the reading on the round display at the front of the boiler below 1? If so this may also cause the same problem - add water from the valve underneath the boiler to raise the pressure, turn off the boiler, which resets it and then turn it back on - if it still doesn't give you any water then its probably the divertor valve.

Steve

steve
December 2007

If you can get heating but not hot water then the problem is probably with the divertor valve - I have had the same problem twice on my vaillant combi boiler.

steve
December 2007