please bear with, boiler has had it's annual service and has been fine but this morning got up and the boiler had been working as the raditators were warm. the pump was working but the boiler was not firing up turned the temp up and it fired up and has been fine except the temp/ pressure gauge is gone no reading at all both needles are not working, can 't get anyone to see it until thursday just want to make sure i am not going to blow/ damage it up if i keep using . i am a girl and we are rubbish at these things, many thanks for your help