In my spare bedroom, there are four electrical outlets. If I use a vacuum cleaner in one of those outlets, the breaker trips. However, if I use any of the other outlets, it works fine. Is the outlet itself bad, or is there some other kind of wiring problem? This breaker only powers the four outlets, a ceiling fan and light. I had the light (7W LED) on, and everything else off or unplugged. All outlets show 120V Hot-Neutral, and 0 V Neutral-Ground. The breaker is a 15A Combination Type AFCI Type BRAF.