Possible cause and actionProblem
•
The air intake on the rear or on the right 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 temperature of
the UV monitor is too high
•
Wrong UV flow cell for current buffer
Change to a shorter UV flow cell or change buffer.
•
The UV flow cell is not correctly installed
Check that the UV flow cell is fitted correctly, see Section 7.8.6
Replace the UV monitor U9-L flow cell, on page 328.
•
Dirt in the UV flow cell
Clean the UV flow cell, see Section 7.5.1 Clean the UV flow cell, on
page 273.
•
Broken UV flow cell
Replace the cell, see Section 7.8.6 Replace the UV monitor U9-L
flow cell, on page 328.
Maximum absorbance that
can be measured by the de-
tector is reached
•
Check that the UV flow cell is fitted correctly, see Section 7.8.6
Replace the UV monitor U9-L flow cell, on page 328.
The UV cell is not correctly
installed
ÄKTA pure User Manual 29119969 AB 365
8 Troubleshooting
8.3 Troubleshooting: Monitors
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