New Bunn NHBX takes about an hour to make 10 cups of coffee. Water is dispensed drop by drop instead of a stream. 4 dispensing holes are clean

Thermal fuse is blown. Above and almost behind tank, and most likely brown. New one at www.bunn.com

lift filler led and remove 2screws on top of reservoir
Then remove 4 screws that hold the reservoir on an you should be able to lift it off

Buy a new K-cup holder from amazon.com. Its the black cone shaped holder.

On my old Hamilton Beach Brew Station the machine made coffee just fine, it would just very slowly dispense the coffee into my coffee cup. The interior of the holding reservoir (this is where the already made coffee sits and is kept warm) was heavily stained by coffee (it was black) and the small dome shaped screen filter (this filter keeps coffee grounds from getting in your coffee cup) appeared black and clogged. I used a product called Krud Kutter available at Walmart. I poured enough of it in the holding reservoir to cover the filter and let it sit for about three hours. It now looks like new. DO NOT run this cleaner through the coffee making cycle. Dump the cleaner out and rinse the reservoir out several times with fresh water. The final step is to run a coffee cycle using just fresh water at maximum water capacity and just let it sit for a while as you would a brewed pot of coffee leaving the pot ON to keep it hot. This will allow any Krud Kutter residue to be removed.

The tank is sealed, however, you can clean it easily by pouring 1 quart of white vinegar into the machine with it still turned on and full of water. Let the water sit for 2 hours and then flush out with 8-10 decanters of water.

With the machine full of water and still turned on, pour in 1 qt of white vinegar into the top and place decanter on base and close the lid. You will let this sit in the machine for 2 hours. At the end of 2 hours, flush out the vinegar with 8-10 decanters of water.

I work for BUNN. Here's a link to the manual for your NHBX-B
http://www.bunn.com/pdfs/retail/usecare/41756.0000_STX_NBX_U_C_English.pdf

I took a small tooth brush and brushed the screen from the inside of the pot. That cleaned it right up and I now have a full stream, dispensing.

before plugging in place your empty filter basket in the coffee maker and place a pot under it. Slowly pour in two pots of water using the pour pitcher. Now you can plug it in. it'll take 15 min to heat up first time . when you brew your first pot leave your water level a little short,because the water will expand (only the first time)