图文解说：此类故障应重点检测调速板是否损坏，调速器是否未打开，电容器C2是否损坏。实际检修中因电容器C2损坏较为常见。C2相关电路如图17-23所示。更换C2后即可排除故障。(https://www.daowen.com)
