I have a Worchester 24i Junior boiler which until recently has been working fine. Now I have a problem that the hot water cuts out after about 30-40 seconds but only when the central heating is on, if the heating is on the hot water works fine. Basically after about 30-40 seconds the pilot light goes out and tries to relight then the warning light flashes rapidly before it eventually resets. The same thing happens each time if the central heating is on. Had a plumber look at it who replace the DHW sensor but the same thing is happening. Any ideas as I don't want to replace other parts that don't need replacing. Any advice is appreciated.
Also when the warning light comes on the central heating is unaffected.
Also when the warning light comes on the central heating is unaffected.
