It began with the stream of coffee slowing down, so I cleaned the urn with Brew Rite cleaner. I followed the directions, but when the process finished, it did not have a flow at all. The pot is approximately six months old.

If the water pressure coming out of the steam/hot water arm is fine, then the issue is likely with the brew unit or the grinder. Here are a few things you can check:

1. Clean the brew unit: A dirty or clogged brew unit can slow down the flow of water. Remove the brew unit and clean it thoroughly, making sure to remove any coffee residue or buildup.
2. Check the grinder: A dull or clogged grinder can also slow down the flow of water. Make sure the grinder is set to the appropriate setting for your coffee beans and check that the grinder is not clogged.
3. Check the water flow meter: The water flow meter measures the amount of water flowing through the machine. If it is clogged or damaged, it can affect the flow of water. Try cleaning the water flow meter with a soft-bristled brush and see if that helps.
4. Check the water filter: If your machine has a water filter, it may be clogged and affecting the flow of water. Replace the filter if necessary.

If none of these solutions help, it may be a more serious issue and you may need to bring your machine to a professional for repair.

Check bunn.com for a free download of manual with maintenance instructions.
* In general;
-Keep the area clean by wiping down with a damp clean cloth.
-Remove the brew funnel and wipe spray head of coffee and grit.
-Wash the brew funnel after each use.
-Dump out old coffee and wash pots after closing. Heavy coffee stained pots can be filled with plain water and soak over nite. Rinse clean before using.
-For extreme caked on dried coffee pots; fill with hot water and leave on warmer over nite. Ask vendor for URN cleaner and add a tablespoon in pot with hot water. Let sit over nite on warmer plate. Rinse clean prior to use.
-Check if everything is working properly. Better to call and leave a message for service.
* when in doubt, call vendor for service.
Aloha, ukeboy57

Brew rite cleaner contains sodium carbonate, NOT sodium Bicarbonate. Sodium bicarbonate is just baking soda, but sodium carbonate is a highly caustic chemical.

According to the MSDS, it contains 40-50% sodium carbonate,
3-5% sodium tripolyphosphate and 10-15% sodium perborate tetrahydrate. The other ingredients must be nonhazardous (fillers, abrasives, etc)

As to frequency of use... it can't damage glass. It might do damage to other materials.

I know this sounds like a pain but it takes a while toget that silly light to stop. Decalcifying your MR. COFFEE® Coffeemaker Minerals(calcium/limestone) found in water will leave deposits in your coffeemaker andaffect its performance. It's recommended that you regularly remove these depositsusing MR. COFFEE® Cleaner or vinegar. MR. COFFEE® Cleaner is available at manyretail stores or by calling the MR. COFFEE® Consumer Service Department at 1-800-MR COFFEE(1-800-672-6333). 1. Follow packageinstructions to prepare one batch of MR. COFFEE® Cleaner. Pour the mixture into the water reservoir. Before decalcifying,remove the water filtration disk from the machine. NOTE: 4 cups or 20 fl. oz. of undiluted, white householdvinegar may be used as a substitute for the cleaner. 2. Place an emptyMR. COFFEE® 10-12 cup basket-style paper filter or MR. COFFEE® permanent filter into the filter basketand slide the brew basket in place. 3. Place theempty decanter back in the unit. 4. Press theCLEAN button until the CLEAN indicator light turns on (Figure 9). For your convenience the cleaning cycle isautomatic. The entire cycle will take 45-60 minutes to complete. During thecleaning your coffeemaker will: a. Slow brewapprox. 3 cups of cleaning solution. b. Pause for 30minutes (the CLEAN light will remain on to alert you that the process is active). c. After 30minutes, your coffeemaker will brew the remainder of the cleaning solution. d. When complete,the CLEAN light will turn off and your coffeemaker will turn off. 5. Discard the cleaning solution and rinse the decanterthoroughly with clean water. 6. Fill the water reservoir with clean, fresh water. 7. Place the empty decanter back on the coffeemaker. 8. Remove and discard the paper filter usedduring the cleaning cycle. If a Mr. Coffee® permanent filter was used during cleaning, remove it andrinse it thoroughly before replacing it in the filter basket. 9. Begin brewingand allow the full brew cycle to complete. 10. Repeat steps 5 through 9 one more time.

I know this sounds like a pain but it takes a while to get that silly light to stop.
If you have problems call the 1-800 number below.
Decalcifying your MR. COFFEE® Coffeemaker Minerals (calcium/limestone) found
in water will leave deposits in your coffeemaker and affect its performance. It's
recommended that you regularly remove these deposits using MR. COFFEE® Cleaner
or vinegar. MR. COFFEE® Cleaner is available at many retail stores or by calling the MR.
COFFEE® Consumer Service Department at 1-800-MR COFFEE (1-800-672-6333).
1. Follow package instructions to prepare one batch of MR. COFFEE® Cleaner. Pour the
mixture into the water reservoir. Before decalcifying, remove the water filtration disk
from the machine.
NOTE: 4 cups or 20 fl. oz. of undiluted, white household vinegar may be used as a
substitute for the cleaner.
2. Place an empty MR. COFFEE® 10-12 cup basket-style paper filter
or MR. COFFEE® permanent filter into the filter basket and slide
the brew basket in place.
3. Place the empty decanter back in the unit.
4. Press the CLEAN button until the CLEAN indicator light turns on
(Figure 9). For your convenience the cleaning cycle is automatic.
The entire cycle will take 45-60 minutes to complete.
During the cleaning your coffeemaker will:
a. Slow brew approx. 3 cups of cleaning solution.
b. Pause for 30 minutes (the CLEAN light will remain on to alert
you that the process is active).
c. After 30 minutes, your coffeemaker will brew the remainder of the cleaning
solution.
d. When complete, the CLEAN light will turn off and your coffeemaker will turn off.
5. Discard the cleaning solution and rinse the decanter thoroughly with clean water.
6. Fill the water reservoir with clean, fresh water.
7. Place the empty decanter back on the coffeemaker.
8. Remove and discard the paper filter used during the cleaning cycle. If a Mr. Coffee®
permanent filter was used during cleaning, remove it and rinse it thoroughly before
replacing it in the filter basket.
9. Begin brewing and allow the full brew cycle to complete.
10. Repeat steps 5 through 9 one more time.

Hi,
I use 1 measuring cup of coffee for each 8 cups of water... this makes a good strong brew...

heatman101

use 7- 8 0z cups fresh grounds. Time to brew depends on efficiency of urn. Maybe 15-20 minutes on average.

The bottom of the urn is sealed with a bright yellow rubbery gasket. As the button is pressed inward by the cup, a sliding lever lifts a valve in the urn. That gasket sometimes splits or wears, or sometimes a grain of coffee gets trapped between it and the valve seat. First try turning the empty urn (only the urn) upside down over your sink and pressing on the little lever under the bottom, while running a strong stream of water directly at the opening. You'll have to experiment to find how to press. That may clear the obstruction. If that doesn't work, replace the gasket. Instructions are in your owners manual.

According to the manual for IS series Mr. Coffee for programmable models:
1. Prepare one batch of Mr. Coffee coffeemaker cleaner. Pour the mixture into the water reservoir. Remove the water filtration disk from the machine.
4 cups or 20 oz. of undiluted, white household vinegar may be used as a substitute for the cleaner.
2. Place an empty paper filter or permanent filter into the filter basket and close.
3. Place the empty decanter back in the unit, centered on the warmer plate.
4. Press SELECT button until the red CLEAN indicator light is illuminated. For your convenience the cleaning cycle is automatic. The entire cycle will take 45-60 min to complete. During the cleaning your coffeemaker will:

• Slow brew approx. 3 cups of cleaning solution.
• Pause for 30 min (the CLEAN light will remain on to alert you that the process is active). At the end of the pause period your coffeemaker will beep.
• After 30 mins your coffeemaker will brew the remainder of the cleaning solution.
• When complete, the CLEAN light will turn off and your coffeemaker will automatically beep and shut off.

5.Discard the cleaning solution and rinse the decanter thoroughly with clean water.
6. Fill the water reservoir with clean fresh water.
7. Place the empty decanter back on the coffeemaker, centered on the warmer plate.
8. Remove and discard the filter used during the cleaning cycle and replace it with a fresh paper filter. If a permanent filter was used during cleaning, remove it and rinse it thoroughly before replacing it in the filter basket.
9.Begin brewing and allow the full brew cycle to complete.
Repeat steps 6-9 one more time.