4320901330_EN_VVIEW (extd)_V1.11_230223Resolving problemsFaultFault ` Possible cause 3RemedyNo display ` No power, wall powersupply plug defectiveor not connected.3 Check power supply, connectwall power supply plug to asocket.USB serial portnot detected(No COM‑portfor selectionlisted)` No driver installed forRS485/USB interface.` Driver for RS485/USBinterface not enabled.3 Install the driver for theRS485 / USB interface fromthe supplied CD‑ROM or viaInternet download.3 Enable connection at theDevice Manager.Displayswitched off,no device reac‑tion` Update running = noerror.3 Wait until the update is com‑pleted.` Update failed. 3 Repeat Update:1. Remove VACUU·BUS® con‑nector from Y adapter.2. Click on UpdateUpdate button in theupdate application.3. Reconnect VACUU·BUS®connector to Y adapter withindetection for connecteddevice (progress bar).3 Send in the gauge, if theproblem persists.Update failed ` Update failed.` Connection: DeviceUpdate kit Enddevice, connectioninterrupted.` No power, wall powersupply plug defectiveor not connected.` No connected devicefound.3 Connection: Do not inter‑rupt connection: Device Update kit End device.3 Check power supply, connectwall power supply plug to asocket.3 Connect the device thatneeds to be updated seealso illustration in chapter6.1.1 Preparation6.1.1 Preparation.Possible error duringan update