Read his reply this morning Sat 11 at 5:41am Quote: No problem's as far as I can remember, then I got a new gas meter put in (pre-pay to quarterly) but the guy did not turn off the combi unit when he took the old meter out and put in the new meter, he then turned all the control knobs upto full but we had them on about 2 not the max. After that we started to notice that the flame detection indicator light was going off after a short while when we put on the C/H.
Put thermostat back to two and leave for a day and see how the boiler now behaves.
Put thermostat back to two and leave for a day and see how the boiler now behaves.