Pressure monitor
ActionDescriptionError
code
Restart the instrument. If recurrent please
contact Service.
Internal instrument error20, 21,
24-27
See Pressure monitors, on page 379.High temperature23
Air sensor
ActionDescriptionError
code
See External air sensors, on page 409.High temperature20
Mixer
ActionDescriptionError
code
Restart the instrument. If recurrent please
contact Service.
Mixer motor error25
Restart the instrument. If recurrent please
contact Service.
Internal instrument error26
See Mixer, on page 405High temperature27
pH monitor
ActionDescriptionError
code
Restart the instrument. If recurrent please
contact Service.
Internal instrument error20, 21
Contact ServiceNo factory calibration25
See pH monitor and pH valve, on page375.High temperature26
416 ÄKTA avant User Manual 29035184 AE
8 Troubleshooting
8.9 Error codes