Here is the manual i found. Hope this helps it talks about deep cleaning the coffee maker. http://www.bunn.com/sites/default/files/care-and-cleaning/43097_0003e_nhs_manual_11_14_web.pdf
If you need further help, I’m available over the phone at https://www.6ya.com/expert/daniel_a4640839dbb7ec58
SOURCE: Water supply for Bunn coffee maker
open the cover on the brewer- depending on your model, it could be the front or the back cover. look for a brew timer dial. turn this up slowly, running a brew each time to see if you now have a full pot
SOURCE: Bunn coffee maker leaks water
There are 3 seals in your unit that could cause your problem. there is a silicon seal right under the pour-in tray, and two on the top of the tank. one of those is for the thermostat, the other is for the sprayhead tube. any of these could leak, causing water to come out the bottom of the brewer. One other thing that can cause this is a scale buildup between the pour-in tray and the tank.
SOURCE: Bunn B10-B leaks
I used Foxhollowrun's solution and went to my local hardware store (Menard's). You can purchase 3/4" Hole Grommets typically found in the electrical department. The brand I purchased was Gardner Bender Model GHG-1575 3/4" Hole Grommets. Here is all that you need to do (very quick and easy):
1) Break away the brittle pieces from the original hole in the resevoir.
2) Remove the old rubber / plastic washers - I found I didn't need them. However, hang onto your metal washer that the drain screw goes through.
3) Slip the 3/4" grommet around the hole.
4) Place the original metal washer on top of the grommet.
5) Screw the drain screw back into the heater which will seal the grommet via pressure. Be sure not to over tighten it - I just snugged mine up.
6) Put everything back together, rinse several pots of water through it, check for leaks, and you should be good to go.
As Foxhollowrun indicated, you may need to tighten the drain screw a bit if you do have a leak. I lucked out - it worked the first time. I believe it cost me about $2 to fix. Also, I did not need any caulk. If you do use caulk, I was told you need to use food-grade caulk.
One last note - as Foxhollowrun indicated, the grommets are quick thick which is why I removed all of the old washers. The original metal washer is just thin enough to allow the drain screw to be reinstalled.
Thanks to Foxhollowrun for a great remedy!
SOURCE: Bunn Coffee Maker Leaks out the bottom
I have an older BUNN B10 pour-o-matic that I thought was leaking from the bottom. Upon close inspection, I found that it was leaking from the worn out washers located on the top of the tank, allowing water to run down the sides of the stainless steel tank. There's a great fix offered on Fixya.com that suggests going to a hardware store and buying a Gardner Bender GHG-1575 rubber grommet with a 3/4" hole and install it into the large hole in the basin. Then place a metal washer on top of the grommet and snug it up with the threaded fitting. Many folks say it's a great fix. I went a different route. I called BUNN customer service and spoke to a very nice woman who understood my needs and sent out a free repair kit that contained a new fitting, washer, and seal. I received it in a few days and it's working great. Beats going out and buying parts for a work around repair. BTW, the repair kit is called "Universal Retail Seal Replacement Kit #37091.0000"
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