ariston eurocombi boiler keeps going on and off when hot water is turned on?

My sympathies.Ours just goes on ,off,on,off while it is switched on.The setting control has hot water,heating and hot water and a house with a ladder beside it which seems to switch the thing off ,Yet to wrk out what that is for.
Ariston and on and on the add used to say ,should have been and off and on and off and on

Hope it is fixed ,did the kit work ,were you able to do it yourself? Any advice gratefully recieved.
Thanks

Des
January 2010

I have the same problem, it would seem that one of the change over valves on the the circulation unit(cant remember correct name, but is the large brass assembly,located at base of heater) has stuck.Arriston supply a kit which includes a new diaphragm and sealing ring to solve the problem. I have such a service kit on order and await arrival from my local agent in Chelmsford,hopefully this will will resolve the problem of my boiler pulsing on/off and minimum hot water at taps

Keith,Chelmsford
October 2009