Liquid over piston unit
Visible air bubbles in glass cylinder
Inaccurate dispensing volume
Erroneous values on display
- Damaged seal lip on piston unit
- Unit not vented
- Suction hose or union nut loose,
deformed
- Piston unit seal lip damaged
- Ejection unit loose or damaged
- Unit error
- 77 -
- Replace piston unit
- Vent unit
- Tighten suction hose firmly. Change
original suction hose
- Replace complete piston unit
- Mount ejection unit correctly
- Reset unit to default settings using
the button in the "Main" menu item