I have a Worcester 30CDI greenstar Combi Boiler with a DT20 Timer. The DT20 Timer is programmed and the central heating set to "timer" but it will run for a while then go to "off" on the timer and a green led will flash. If I press the OK button it will run again and will go back to "timer" and will run for a while but will randomly go back to "off" with the flashing LED.
Has anybody got any idea what this means and how to remedy the problem.
Has anybody got any idea what this means and how to remedy the problem.