Please help me with the following question relating to our LC 1260.
Recently we had a problem with pump A for error: Servo restart failed/ Stroke length misadjustment
We did change the new active valve cartridge, new pump seal, PTFE frit, Purge valve cap. If I choose minimum stroke as "automatic", the error still happens. When I change the minimum stroke to 50, the pump was running normally.
Can you explain what was wrong with this pump?
Thank you very much for your time of consideration.