Hi All,
Looking for some advice regarding my Worcester Greenstar 30Si. When there is a demand for DHW the water is hot for a few seconds, then cold, then hot etc...
The thing is that I had the same thing around this time last year and called out a central heating engineer. The engineer diagnosed the problem as a scaled up heat exchanger and was all set to remove and clean/replace the exchanger until he discovered that due to the boiler design it would be extremely time consuming to remove.
Instead he suggested adding a limescale remover to the CH system (directly into a radiator) and then running the central heating for a couple of days.
Now, I don't know anything about central heating, but I could never understand the logic in this method - how descaling the CH would fix the issues with the DHW.
However, this approach worked perfectly - after the CH had been on for 12 hours the DHW problem had gone and everything has been fine for 12 months until the last couple of days.
My question is, is there a good reason why this should have worked? if so, was it due to adding the limescale remover, or was it just due to running the CH?
Looking for some advice regarding my Worcester Greenstar 30Si. When there is a demand for DHW the water is hot for a few seconds, then cold, then hot etc...
The thing is that I had the same thing around this time last year and called out a central heating engineer. The engineer diagnosed the problem as a scaled up heat exchanger and was all set to remove and clean/replace the exchanger until he discovered that due to the boiler design it would be extremely time consuming to remove.
Instead he suggested adding a limescale remover to the CH system (directly into a radiator) and then running the central heating for a couple of days.
Now, I don't know anything about central heating, but I could never understand the logic in this method - how descaling the CH would fix the issues with the DHW.
However, this approach worked perfectly - after the CH had been on for 12 hours the DHW problem had gone and everything has been fine for 12 months until the last couple of days.
My question is, is there a good reason why this should have worked? if so, was it due to adding the limescale remover, or was it just due to running the CH?