Resurrected a 6890 which has not been used for a while. When the chemstation is turned on, it gives message of "Limits fail: liner(injection)". Pulled out and cleaned/replaced microseal (fine), glass liner with o-ring (no physical samage) and golden seal underneath(replaced). The warning still pops up.
Indeed, there seems to be significant leakage, since He is consumed quite a lot, overnight in standby mode. What else should I check? Thank you.