Check if the lamp-tube is burnt out,or if the starter in the outer ballast-box fails(induction ballast).if serious malfunctions occur on the UV lamp,never dismantle and repair it by yourself ,have if repaired by the manufacturer of professionals.

• 检查灯管是否烧坏，或外置镇流盒中启辉器是否有问题（指电感镇流器）uv灯如出现较严重的故障，请勿自行拆修，应由生产厂商或专业人士进行。