Occasionally, debris left behind during installation—such as copper shards from cutting pipes or excess solder—can become lodged in the narrow bends of the pipework.
| Location | Solution | |----------|----------| | | Replace frit (if possible) or reverse-flush column (low flow, no detector). | | Tubing | Cut off the blocked end (often near the ferrule) or replace the tubing. | | Injector needle/seat | Clean or replace needle and seat assembly. | | Detector cell | Reverse-flush with strong solvent; if failed, replace cell. | | Pump check valves | Ultrasonicate in methanol/water. |
Homeowners often mistake a blockage for a broken boiler or a faulty pump. Key indicators of blocked microbore include:
Occasionally, debris left behind during installation—such as copper shards from cutting pipes or excess solder—can become lodged in the narrow bends of the pipework.
| Location | Solution | |----------|----------| | | Replace frit (if possible) or reverse-flush column (low flow, no detector). | | Tubing | Cut off the blocked end (often near the ferrule) or replace the tubing. | | Injector needle/seat | Clean or replace needle and seat assembly. | | Detector cell | Reverse-flush with strong solvent; if failed, replace cell. | | Pump check valves | Ultrasonicate in methanol/water. | blocked microbore
Homeowners often mistake a blockage for a broken boiler or a faulty pump. Key indicators of blocked microbore include: blocked microbore
