How do you descale - Coffee Makers & Espresso Machines

http://www.fixya.com/support/t26582359-delonghi_coffee_machine_red_light_keeps

1. If you can get steam/water from your steam spout.
   

2. Fill your tank and add descale solution.
   

3. Descale according to the instruction for the unit.
   

4. After descale and rise are complete refill your water tank.
   

5. Your system should now work as normal.
   

Note: If you do not have a descale solution, run the above with just water. Remember to descale when you obtain a descale solution.

instractions are from manual HD7810/00

Use the correct descaling agent
Only citric acid-based descalers are suitable for descaling the SENSEO
machine. This
type of descaler descales the machine without damaging it. For the correct amount,
see under 'Descaling procedure' below. Each descaling mixture can be used only once.
After use, the descaling mixture is no longer active.
We advise you to use the special SENSEO
Descaler (HD7012/HD7011/HD7006).
Read the instructions on the package of the descaling agent.
Never use a descaling agent based on mineral acids such as sulphuric acid,
hydrochloric acid, sulphamic acid and acetic acid (e.g. vinegar). These descaling
agents may damage your SENSEO

coffee machine.
Descaling procedure
1 Mix 50 grams of citric acid with 1 litre of water in a measuring jug. Stir until
the powder is completely dissolved.
2 Fill the water reservoir up to the MAX indication with the descaler mixture.
Then put the water reservoir back into the coffee machine. (Fig. 3)
Note: Not all SENSEO
machine types have a water reservoir with a capacity of
1 litre. If you have a SENSEO

machine with a smaller water reservoir, repeat steps
2 to 6 with the remainder of the mixture without filling the water reservoir up to
the MAX indication.
3 Press on/off button 3. (Fig. 10)
The machine is ready for use when the indicator light lights up continuously.
4 Place the 1-cup holder h with a used coffee pod in it in the coffee machine.
Close the lid and make sure it is properly locked.
Note: Always put a used coffee pod in the pod holder when you descale the
machine. This pod serves as a 'filter' to prevent the sieve or hole in the pod holder
from getting clogged with scale residue.
5 Put a bowl with a capacity of at least 1500ml under the spout to collect the
descaling mixture (Fig. 8).
6 Press the 2-cup button hhand let the machine operate. Repeat this until
the water reservoir is empty. (Fig. 25)
Never interrupt the descaling process!
7 Repeat steps 1 to 6. Replace the used pod with another used pod to filter out
the scale residue.
Note: To descale properly, you have to use 2 litres of descaling mixture.
Never descale the SENSEO
coffee machine with the lid open. Make sure the lid is
properly locked.
8 Rinse the water reservoir with tap water. Fill the water reservoir up to the
MAX indication with tap water and repeat steps 3 to 6.
Note: Do not refill the water reservoir with used hot water or the used descaling
mixture.
9 Fill the water reservoir with fresh tap water up to the MAX indication again
and repeat steps 3 to 6 once more.
Note: Always rinse the machine by letting it empty two full water reservoirs.
10 Remove the used pad and clean the pod holder after descaling to prevent the
sieve or hole in the centre from getting clogged.

in the menu just after descal go to signal descal then press enter and reset the counter.

Depends on how many times you have used it, before descale light comes on. Might not be able to manual descale, read instructions. You can buy Descaler Solution from all Supermarkets, but if unit working OK, leave it for a few Months, and see what happens..

Hi Auto descale: To automatically descale your machine, press the scoop button and hold it down until you enter the menu. Use the arrows on the left to scroll up until you come to Descale. Press enter and the machine will enter the mode to descale your machine. The process takes about 45 minutes. You don't have to do a thing except mix a full water tank with descaling solution and have a container under the steam wand when your start. If you have a cappuccinonatori on your machine you will need two containers. To start the descaling process, simply turn the steam knob. When the process is over your machine will say, "Descale finished". Remove your water tank and rinse it out. Refill it with fresh water. Replace on the machine and start the descaling process over again to rinse your machine. Go back into your menu and scroll up or down 1 to "Signal Descale" and enter. Choose "Yes" and push enter so the machine will tell you when you need to descale again.

Hi,

Check out this tip about how to descale your Keurig coffee brewer

How to Descale your Keurig Coffee Brewer

heatman101
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THIS INSTRUCTIONS ARE FOR THE MIELE CVA 615,

The coffee system must be descaled regularly. The time period depends on
the water hardness set. The appliance will display a reminder message and
will eventually lock if not descaled. The message window will first display:
"DESCALE AFTER COFFEES: 100".
This message will appear until the appliance is descaled or locks. When
the count is down to zero, the appliance will lock and the message
window displays: The appliance can only be used again
once descaling has been performed. Let the machine cool before
descaling. Remove the sleeve of the steam nozzle to avoid damage from
the descaling agent. Only use the enclosed descaling tablets for descaling.
The descaling tablets are specially designed for descaling this coffee
system. Other agents may damage the machine and affect the taste of
the coffee and hot water. The descaling tablets can be purchased
from Miele.
To prevent damage to the exterior of the machine wipe up any descaling
solution spills immediately! Add 2 liters of water to the water tank. Dissolve two of the enclosed
descaling tablets in the water.
^ Close the water tank and insert into position.
^ Close the door. The descaling will take place in the
automatic descaling program.
Automatic descaling
^ Turn the program selector
counterclockwise to the "Program
mode" position.Press e, to select "Descaling" with the asterisk. Press ENTER.

Use a citric acid based descaling solution rather than a cleaning based solution.

You have to ensure the descaling function runs completely to the end. Occasionally the water tank will be empty BEFORE the descaling program has finished, in which case you should refill it and let it continue descaling.

The light wiill automatically go off once the descaling program has been fully completed.

You need to descale the machine with descaling solution.
look at following link for instructions

DELONGHI