No problem at all, and I hope you have a nice vacation.
If you're getting the same results no matter what carts you have installed, and the pump doesn't come on while the printer sits idle, then I have to suspect something mechanical with your printer. I would always start with the ink selector unit (dampers) and wiper blade before the print head, and those things you can replace yourself fairly easily and without any special tools or software. You can get those parts from compassmicro.com, and the repair manual with instructions on replacing these parts from 2manuals.com
Even though this printer is "young" as far as the number of prints it's made, sitting around unused with ink installed is actually worse for a printer than being used (and maintained) or a regular basis, so if the printer has a low print count because it sat around, then you may have pushed settled pigment into the dampers when you did the first flush cycle, and the clogged dampers are now not letting ink flow (which isn't for sure your answer, but possibility).
I wish you the best, please keep me posted and let me know if you have further questions or there's anything else I can help you with.