Quick triage: When splices start failing, work through these checks in order: (1) re-clean the fiber, (2) advance/replace the cleaver blade, (3) clean the v-grooves, (4) run arc calibration, (5) verify the splice program matches the fiber type, (6) inspect or replace. Quick triage: When splices start failing, work through these checks in order: (1) re-clean the fiber, (2) advance/replace the cleaver blade, (3) clean the v-grooves, (4) run arc calibration, (5) verify the splice program matches the fiber type, (6) inspect or replace. Fusion Splicing Problems are a daily reality for fiber technicians, ranging from simple dust contamination to complex arc instabilities. While the Sangken Splicing machines are designed for high-precision work, even the best equipment requires proper troubleshooting when splices fall outside of. This article explores the most common problems encountered during fibre fusion splicing and provides practical, step-by-step solutions for each issue. What Causes High Splice Loss? One of the most frequent complaints among technicians is unexpectedly high splice loss. The guide provides the complete workflow, covering safety precautions, tool selection, fiber preparation, fusion operation, quality control, and. The fusion splicer flags every kind of problem with its own visual signature, but the troubleshooting is the same: identify the defect, find the root cause, fix it, and re-splice. This guide is a field reference for diagnosing common splice errors. To counteract these errors, technicians can go through the following troubleshooting checklists: Perform an Arc Test: Before splicing, it's important to perform. Fiber optic fusion splicers require precise operation.