Problem: There is a control power supply, but it can't be lit and the abnormal light on the control panel is not lit.
Reason 1: UV lamp is old or deteriorated. Solution: Replace the UV lamp.
Cause 2: The fuse of the main circuit is blown. Solution: Check and replace the fuse of the main circuit. Check whether the main circuit is loose and short-circuited to the ground, whether the main transformer of UV equipment is faulty, and whether the capacitor is faulty.