The upstairs of my house consists of two rooms that are powered by two 20 amp breakers which are tied together. A few days ago one of the rooms lost all power while the other room continues to work fine. The power is still out and I have reset the breaker several times and this doesn't work. Could one of the 20 amp breakers be bad? Or, does it sound like there might be another problem. Would turning off the main breaker help? Thanks in advance!