Search results

Thanks to everyone for your useful replies. I've called Home Serve back and am awaiting a reply from their engineer for a return visit. Will keep you posted on the result.

My Vaillant boiler central heating comes on by itself when I run hot water. It was doing this for a while and went unnoticed. (I thought that we'd forgot to switch the central heating off manually as it doesn't respond to the thermostat settings). Then we lost all hot water and called Home...