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SCU: Incorrect status W-704
Cause: The safety control program rejected the run and the LED is red.
Action: Open the cover so the message disappears and the red LED goes out. This takes 4 seconds. The
control program is now on stand-by.
SCU: in “OK” status W-705
Cause: SCU status is OK.
Action: None.
Lid open W-711
This message appears if no disinfection program is active and the cover sensor is on. No disinfection
program can be started.
Cause: The cover is open.
Action: Press the Open/Close
button and then the Start button.
Cause: There is a cover sensor defect, causing the message to appear even though the cover is closed.
Action: Report the situation to the maintenance department for repairs.
Lid will not open W-712
Action: Try to open the cover by pressing the Start
button.
Cause: The air pressure is too low to open the cover.
Action: Open the front cover and check the pressure gauges. Report any unusual readings to instrument
service.
Cause: The cover is blocked.
Action: See if the blocking can be noticed visually, also on the rear side, and try if possible to remove
this. If this does not work: report problem to the maintenance department.
Cause: A problem control valve is causing the cover cylinder to malfunction.
Action: Report the situation to the maintenance department.
Cause: The Open/Close button was pressed down too long.
Action: Press the button again but for a shorter time.
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