How to descale tassimo - Bosch Tassimo TAS4511UC Coffee Maker

First see this:
descale Bosch Tassimo Google Search

Then see THIS for specifics (he said with a smile):
Tassimo descaling How to


ANTHONY!
(Say Thank You!)

Hello -

I suggest you read the Tassimo descaling information here:
http://shay.la/descaling-your-tassimo-on-the-cheap/

Best wishes.

you need to use the cleaner disk (tucked into the back of the machine) and run through some of the cleaner solution. Then run though just water. Don't forget to store the cleaner disk back in the machine.

https://www.tassimo.ca/en/customer-care/#product-manuals-and-guides

at the above link you will find tassimo manuals
and yes you do need the yellow disc as it has the right bar codes for the descale cycle.
If the manual for the model you have is not available, just read one of the manuals descale sections to refresh your memory, I know I forget how in between descaling sessions

I found that my local appliance parts place (Reliable Parts) had them for about $7 each which was quite a bit less than ebay sellers and direct from Tassimo.
(Make sure yours is not hiding in its slot on the back of the machine.)_

This is a great posting on how to descale your tassimo

http://shay.la/descaling-your-tassimo-on-the-cheap/

In order to keep your Tassimo machine operational at full order, it is important to descale it every three months. Descaling products are widely available from stores that sell coffeemakers and espresso machines. Be sure that the product you buy to descale your Tassimo machine is intended for this specific use only. Mix the descaling product directly in the water container, following the instructions provided on the descaling packaging. Then replace the water container on the machine. Place a large cup or mug on the cup stand, insert the cleaning disc, bar code down and close the brew mechanism. As soon as the AUTO light illuminates, press and release the start/stop button. This will fill the brew cycle with descaling solution. Empty the cup and let the machine stand for 15 minutes. Then open the brew mechanism and close it again, leaving the cleaning disc in place. Repeat this step two more times for maximum descaling effectiveness.

Discard the remaining descaling agent from the water container, rinse it well and refill with fresh, cold water. Clean the machine by flushing water through it in the same manner and emptying the cup as it fills. Make sure that all the descaling solution has been completely rinsed away, and then flush two full water containers through the machine before using it again. Remove the cleaning disc, rinse and refill the water container and your Tassimo machine is ready to use. Also, before you descale your Tassimo machine, always unplug it. Also, never immerse the appliance in water and nor should you use abrasive cleaning products or scouring materials on any part of your Tassimo machine. This method works for most espresso machines, including some of these popular models: the DeLonghi Magnifica EAM3200S, DeLonghi Magnifica ESAM4200S, DeLonghi Perfecta ESAM5400, Gaggia 74507BCN Classic, Krups EA8080 Espresseria Automatic, DeLonghi PrimaDonna ESAM6600, the BC0255 DeLonghi coffee machine and the Krups Nespresso CititZ XN 7006.

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.

Removing the red descaling light is simple.
1. Fill reservoir with half vinegar and half water (no need for the special descaling product from Tassimo).
2. Turn on machine.
3. Insert yellow cleaning disc found in back of machine.
4. This is where most people have the their problem...You must hold the start button for 3 to 5 seconds for the descaling program to start. Both green and red light will flash.
5. Once started, use a large cup to catch the output of water.
6. The machine will cycle through the descaling program in about 30 to 45 minutes. Be paitent!!!
7. Once completed, run many cups of plain water through the system to remove the vinegar taste.
8. Red light problem is solved.

Hope this works for you.

Fill the water tank to the top and add your descaling solution,
Insert the cleaning disc
Press and hold the button on the front.

The descaling program will then run - it will take some time to complete and you may need to refill the water tank before the descaling program has finished.