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Mixer
Possible cause and action Problem
• Leaking tubing connections
Check the tubing connections. Tighten or replace if necessary.
Check the O-ring. Replace it if it is damaged. See Section 7.8.4
Replace the O-ring inside the Mixer, on page 323.
Check the Mixer chamber. Replace it if the liquid has penetrated
the Mixer chamber walls and sealings. See Section 7.8.3 Replace
the Mixer, on page 322.
See Chapter 10 Ordering information, on page 506.
Leakage
• Bad mixing of eluents
Check the function of the Mixer. Place a stirrer bar in the palm of
your hand. Hold the hand above the Mixer. The stirrer should
move when the Mixer is activated.
Check the Mixer chamber size and change chamber if necessary.
See Section 7.8.3 Replace the Mixer, on page 322.
Unstable gradients
• Bad mixing of eluents
Check the function of the Mixer. Place a stirrer bar in the palm of
your hand. Hold the hand above the Mixer. The stirrer should
move when the Mixer is activated.
Check the Mixer chamber size and change chamber if necessary,
see Select Mixer chamber, on page 152.
Noisy UV signal
• The Mixer chamber is not correctly installed
Verify that the Mixer chamber is correctly installed. See Sec-
tion 7.8.3 Replace the Mixer, on page 322. If the error is recurrent,
replace the Mixer chamber. See Chapter 10 Ordering information,
on page 506.
The Mixer chamber was not
recognized
• The air intake on the rear or on the left side of the instrument
is covered
Make sure that none of the air intakes on the instrument are
covered.
• Hot surroundings
Decrease the room temperature. Maximum operating tempera-
ture is 35°C.
• Hardware error
Switch off the instrument and wait until the temperature has
decreased. Restart the instrument. If this error is recurrent, gen-
erate a System error report and contact Service.
The internal Mixer tempera-
ture is too high
ÄKTA pure User Manual 29119969 AB 395
8 Troubleshooting
8.7 Troubleshooting: Other components