I have, what I believe is, a weak 50 amp breaker. I purchased a new breaker but I do not know which breaker is the weak one. I have 4 breakers all connected together with a brass plate on the brass pole and a separate breaker not connected to the breakers or the plate. All the breakers are in the battery compartment and all line up vertically on the wall. I tried to trace the wires but many of them are bundled together and in a tube for easy handling. Help!