8a. User testing guidance
Door lock check
This test is to ensure that the door cannot be opened while a cycle is running or a cycle
will not start with the door open. To check these features are working correctly proceed
as follows: - attempt to open the door using the handle immediately after a cycle has
started. Caution - DO NOT attempt this when the wash arms are rotating and/
or the water is above ambient temperature! The door should not open.
• attempt to start a cycle while the door is open. The cycle should not start.
In the event of the failure of this check, stop using the machine immediately and call
your dealer for technical service.
Wash arm rotation check.
This check can be performed by a visual check through the glass door during a cycle
or a manual check of the free movement of the arms while the machine is in standby
mode. If the wash arms are stiff or sluggish in operation, remove and clean the arms
and check for debris. (See section 6.5).
Door seal check.
Visually check door seal for debris or wear. If seal is worn or damaged, call your dealer
for technical service.
Load carrier check.
Visually check load carriers (trolleys) for wear and tear, damage and that the runners
move freely over their full range.
Check and clean chamber filters.
Remove, visually check and clean as per section 7.5.
Visual examination of each load for residual soil.
Washer disinfectors are designed to ensure that the surfaces of instruments are free
from debris that may compromise the sterilisation process. A visual check of the
instruments processed in each load should be undertaken, under magnification, prior to
sterilisation to ensure that no residual debris is present on the instrument.
If debris is still apparent, the instrument should not be considered clean and should be
reprocessed through the WD again prior to sterilisation.
Note: some set-able materials such as cements and composites, if set on the
instrument will not be removed in a WD or Ultrasonic cleaner. If these materials are
noticed on the instrument then abrasive removal may be required.
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