Low Energy fault
Alex or YAG head energy of last treatment pulse is >14% low.
Re-calibrate the laser.
Try another slider attachment.
Replace flash lamps.
Replace laser head.
Clean optics, Beam splitter.
If problem persists, contact Candela Service.
⚠️ If this information is not enough or you are still facing the same problem, do not hesitate to leave your inquiry in a comment .