I have worcester 28i junior. Before today it i was experiencing fast flashing warning red light and I had to reset the boiler to get rid of that. This morning that fast flashing light changed into steady flashing(once every second) and not resetting anymore(tried pressing reset button and switching boiler on and off) but still the sames steady flashing light. I noticed low pressure couple of days ago and tried increasing the pressure but unfortunately did it bit too much. Its at 2.5 now. I don't even know how to decrease the pressure. Any help please?