Our office has a VPS series coffee maker. We pour pre-measured water into the reservoir to make coffee. The coffee maker makes only one-half pot. The next time we make coffee, the pot overflows. This seems to happen most when the coffee maker has been sitting over the weekend
Coffee Makers & Espresso... - Bunn - VPS Coffee Maker
Answers & Comments
Try ask a specialist about that matter. or to the store where you bought it. I guess you must read again the manual. Hope this link shall help you with your concern.
http://www.coffeemakerwizard.com/
The machine is always on, so it is never full the first time you use it on monday. Try this before you use it on monday pour in a full pot of water in the brewer and put an empty pot under the head. Wait about 7 minutes, the machine will fill the tank and then be ready for brewing coffee.