When you dream of an alarm bell it represents how concern you are of some situation. You will worry a lot about the work you are doing and problems you are facing, but as the time goes by, the problems will be solved and there will be nothing to worry about. However, the actions to make an impact will have to be done, if you want the problems to be solved. So, make sure you a ready to fight and make important decisions.
Read more about dreaming of Alarm Bell in other dream meanings interpretations.