Search results

I have been out to a 2 year old Worcester Greenstar 30i with an intermittent problem with the hot water going hot then cold (clap cold like the cold tap is on). I have looked at the pattern, the water temp is set at 50 degrees the boiler fires up when the tap is turned on the temp climbs as it...

Hi everyone. A friend of mine has this boiler. Now the boiler fires up ok and the burner runs but the hot water runs hot and cold intermittently. Also the radiators start to get warm when running the hot tap even though the heating is switched off. I thought then it must be the diverter valve...