Not enough water making it from holding tank to dispensing cup

it sounds like you don't have enough water come blockage or luck of incoming water if you have a filter in the water tank remove it and try again

There is another process to get into descale mode on some 7.1 machines. I got this from Illy Support:
Descale Cycle
• Turn off machine
• So the usual filling if container with descale fluid
• Turn machine on and within 15 seconds from power on – press and hold in the big cup
button until it gives 4 acoustic signals and then release your finger.
• The big blue cup button should now be flashing
• Press the big blue cup button once – the machine will now dispense water intermittently
from the coffee group head and the steam arm and the steam and coffee button will be
flashing alternately
• Once the descaling cycle has completed it will give out a long acoustic signal
• The coffee button will continue to flash
Rinsing Cycle
• Remove the water tank – wash out and fill with clean fresh water just over the MAX level
• Empty the container holding 1 litre of water and reinstate back under coffee group head and
point steam arm in container.
• Press the flashing big cup button once
• Water will again dispense intermittently from group head and steam arm
• An acoustic signal will sound out as soon as the rinsing cycle is complete.
• The Big Blue coffee button will be steadily lit
• Remove 1 litre container.
• Remove water tank – clean and refill with clean water

–red light should now be off and ready to make coffee

make sure you have soap

Make sure you have enough water pressure for the dispenser. Most RO water filter systems require at least 40 PSI line pressure.

Hi,

Here is a tip that I wrote that will give you some things to try that will helpyou get your Keurig coffee brewer workingagain.

Keurig CoffeeBrewer not making a full cup of Coffee
heatman101

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Sorry to read about your issue.

The brewer should be de-scaled at least every 3-6 months. Scale is harmless, but if left unattended, it can hinder optimal brewer performance. De-scaling your brewer regularly helps maintain the heating element, removable water reservoir and other parts of the brewer that come in contact with water. Better water quality and water heating means a better cup of coffee, tea, hot cocoa or iced beverage. We recommend de-scaling your brewer at least every 6 months (every 3 months if your water has a high mineral content). The de-scaling process involves using 48 ounces of undiluted white vinegar.

Take 48 oz of white vinegar. place in tank. pretend you are making coffee (Do No Use K Cup). let the water fill you mug. then empty that mug. Do it again until tank is empty. then let sit for 4 hours.
Then fill with fresh water to the top. let that tank of water run thru. towards the end taste the water.
If you taste vinegar..use more clean water, until the taste is ok.

I tried to help you. Please help me and Vote/Rate this response. Thanks and good luck

After many months, I solved the problem of the red light staying on the Tassimo Coffee Maker. Use these easy steps.
1. Fill a 2 cup measuring cup with hot water.
2. Mix in descaler.
3. Pour in the empty water tank.
4. Put the yellow cleaning disk in the chamber and close chamber. Put the two cup measuring cup under the spout.
5. Push and hold the brew button for about 3 seconds (until the red and green light flash.
6. Now don't touch the machine. It will do it's thing for about 20 minutes. (Don't be impatient and start to push buttons, just leave it)
7. When it finishes it's cycle. The red light will turn off. Then clean the water tank and put fresh water and run clean water through the brewing cycle 4 times. Your machine is now ready for use.

keurig is not dispensing enough water properly when making a regular cup of coffee

Check where the water comes out under the brew filter. It sounds like you may be missing the sprayhead. It is a round metal or plastic piece that is screwed on to the water dispense area and acts like a little showerhead forcing water evenly over the coffee grounds. If it is missing, the coffee will be weak. Check the water temperature. If it isn't hot enough, the coffee will be weak.

Fabric softener dispensers are notorious for getting all gummed up and clogged. Remove the dispenser cup and soak in some hot water to dissolve all residue. While you have the dispenser removed check under the dispenser cap in the agitator for gummy residue as well. Clean with hot water. There should also be an agitator seal cap under the dispenser. Make sure the cap and rubber o-ring are seated properly. Last of all, if the dispenser has a cone shaped cup inside, make sure it is inserted cone-side UP. The cup is designed to allow fabric softener to roll down the sides of it, NOT hold it. I hope this helps.