Cutting out straight away is also very likely an indication that it thinks part of the hose or the filter or something else is blocked - our basically almost new one which has no issues other than that shit design does it all the time too, it's a massive pain! If you forensically unblock each and every part of the assembly, I wouldn't be surprised if it solves it (and flashing warning lights may also stop flashing as a result).
Cutting out straight away is also very likely an indication that it thinks part of the hose or the filter or something else is blocked - our basically almost new one which has no issues other than that shit design does it all the time too, it's a massive pain! If you forensically unblock each and every part of the assembly, I wouldn't be surprised if it solves it (and flashing warning lights may also stop flashing as a result).