Bunn 10 Cup Home Coffee Brewer - Answered Questions & Fixed issues
How do you drain water from reservoir
I would unplug it . Wait till it cools, take the top off and push a small tube down inside the water tank but long enough to come out and get below the bottom of the tank and syfon it out.
Can I dump water out of reservoir and refill
To empty the reservoir, you need to turn the whole unit upside down while holding it over a sink or outside on the ground that can get wet. Be sure to turn it on and wait for the water to heat up before brewing a pot of coffee.
Very loud when heating
It's the sound of the water expanding quickly as it's nearing its boiling point amplified by the enclosed water tank inside. Normal.
Bunn Home coffee pot
If you remove the top , then remove the water basin, you will see the heater. At each end of the heater (inside a white tube) is a thermal fuse. Will read like any other fuse with a meter. They carry them at radio shack as well as other places. The temperature is on the side of the fuse. Needs to be replaced with the temperature.
How to activate a 10 cup bunn coffee brewer model nhb?
I don't understand the question, but here is a try.
1 - put in two pots of water.
2 - put in third pot, the water should start coming out
Allow the water to heat (thirty minutes) then put coffee in filter housing, put in one pot of water, put empty pot on warmer, close lid, wait for brew cycle, enjoy coffee.
Why dos the maker only put part of the water when making coffee
My mother-in-law had a similar problem and I found that a transparent film coated the entire inside of the reservoir (you can see if yours does too by feeling the inside of the tank as deep as you can reach). Once I got it clean, it began making full cups of coffee again just like it did when it was new.
Here's how I got it working for her. Her tank has a fine meshed stainless steel screen over a "small valve" on the bottom of the tank secured with 3 small phillips screws. I removed the screws and took out the valve. The screen "looks" clear - but the same transparent film on the tank walls was coating the screen, too. As a result water flow thru it is significantly reduced - so it takes longer for water to pass thru it - resulting in "short" cups of coffee. The screen must be cleaned or replaced. I opted to clean it with an old tooth brush and soapy water. I then flushed the soap and the film from it while holding it under a stream of water from the faucet. I looked at the volume of water passing thru the screen to be sure it was cleared well. When happy with the flow, I resecured the valve to tank (after washing the tank in the top rack of the dishwasher as per the instructions on the underside of the tank lid).
The film is a type of growth - like algae. To help prevent regrowth or slow it down; do not let water sit in the tank all the time. Pour only enough water in the tank that you'll need for the next 8 to 12 hours - better yet - dump the remaining water out after each "batch" of coffee you need to make. Do not let water sit over night or for any longer than necessary. Be sure to WASH the TANK regularly in the top rack of the dishwasher - as per the directions.
I hope this helps & good luck!
Why does coffee come out while pouring in water its a bunn 10 cup coffee maker
The Bunn has a little stopper that closes the water drain port in the reservoir while the lid is open. You can see a little white plastic pin protruding up out of the grate with the lid open. When you close the lid, it pushes on that pin which causes the stopper to lift off the drain port, allowing the water in the reservoir to enter the heating tank.
If water is entering the coffee basket BEFORE the lid is closed, then something is wrong with that little stopper. It may have a chunk of debris on it preventing it from sealing, or it may be deteriorated, torn, disconnected, etc.
Only way to know is to remove the the screws in the grate and pull the top off exposing the reservoir, and the stopper assembly. The little plastic flapper disc should be seated in the reservoir drain port. It should be relatively flat (not wrinkled) and covering the drain port completely. Test it by pouring some water into the reservoir. If it drains out without you activating the stopper, then a repair is needed.
Move the lever up and down and check its operation. The arm must move freely and close when released. There should be no dirt or debris on the sealing surface of the flapper nor on the sealing surface of the drain port. Gently clean with vinegar as necessary. If the seal is damaged, then a replacement is required.
Wont heat water
Probably the thermal fuse to the heat element. Use a test meter to run a continuity test through the fuse. You should be able to get a replacement fuse through your local dealer or electronics store such as Farnell, RS Components, Radio Shack etc
My bunn water coning out is warm not hot
Make sure it's getting power, and that the "vacation" switch isn't on.
If on a GFCI outlet, press the RESET button - Do Not press the "test" button. If GFCI is located upstream on another outlet, or the breaker (not uncommon), try resetting the breaker or that other outlet.
If still no joy, check that the outlet is hot by plugging something else into it. If that item doesn't work either check the circuit breaker for that outlet by moving the lever all the way to the Off position, then back to the On position. You should hear a click like a light switch.
What do I use to clean the inside of my tank
The white film is just mineral (lime) build up, but indicates the whole machine may also have buildup. You can try brewing some plain water with a cup of vinegar added, or get one of the commercial coffee maker cleaning products sold at supermarkets.
The film at the very top, visible in the grate, isn't likely to be affected by either cleaning method because the water just passes right through it. For that part, try some full strength vinegar on a cleaning cloth.
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