b'TROUBLESHOOTINGProblemPossible Cause Corrective ActionFailure to Achieve Dressing Leak Smooth down dressing border Negative Pressureand silicone sealing gasket to remove any creases which If dressing does notmay be allowing air into constrict or the bluesystem.sealing flap does not depress within 5 minutes the system has NOT achieved negative pressure. Insufficient tubeCheck tubing connection to connection to vacuumvacuum chamber to ensure a chamber hose barb secure fit. Delayed vacuum Ensure dressing application chamber activationand tube connections are sound and wait approximatelyone minute to visually identify shrinkage in dressing.NP SIMS Health Care Practitioner Instructions for Use (IFU)17'