Hello, we have a 1952 Cape, not dormered. I have a switch that needs to be replaced in one of the upstairs bedrooms, it is making a buzzing sound when turned on. The problem I am having is that I can not find the circuit breaker to shut off the power to it. I tried every breaker in the box and not one of them shuts it off. Any idea what I can do, besides shutting off power to the whole house? Thanks -Steve