When I turn the machine on the two left green lights and the most left red light water keep on flashing and the machine does not get ready to brew coffee. .

On Rancilio coffee machines, the meaning of the green and orange lights can vary depending on the specific model and configuration of the machine. However, in many Rancilio espresso machines, the lights are used to indicate certain states of the machine during operation. Here are some common interpretations for the green and orange lights:

1. Green Light: The green light on a Rancilio coffee machine typically indicates that the machine is powered on and ready for operation. When you turn on the machine, the green light should illuminate to show that it has power.
2. Orange Light: The orange light often indicates that the machine is in the process of heating water to the optimal brewing temperature. Once the water reaches the correct temperature, the orange light may turn off, and the machine is ready for brewing.
3. Blinking Orange Light: A blinking or flashing orange light might signify that the machine is in a heating phase, and the water is being heated to reach the appropriate temperature. This is common during the initial warm-up or after the machine has been idle for a while.
4. Red Light: Some Rancilio machines might use a red light to indicate specific alerts or warnings, such as low water level, need for maintenance, or other issues

I looked up your problem and found the same one was answered previously on fixya. I have copied and pasted the previous answer here for you. Good luck and I hope you have a great day!
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.

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.



Found the answer on another fixya post. Seems like about the same product.

http://www.fixya.com/support/t6123164-tassimo_red_light_stays

• All lights will blink the first time you turn on your
machine. This is your cue to prepare your machine for use by
following the quick instructions in Step 1 on separate insert.
• If the water level runs low while you are preparing a
beverage, all lights will flash. Simply remove and refill the
water container, and brewing will continue automatically
where it left off. It should not be necessary to discard the T-DISC
and start over.
• The AUTO light will blink throughout the brewing process.
Some drinks require a pause in brewing as part of the recipe
for brewing your perfect cup - this is to allow the optimal flavors
to unfold and is a normal part of the brewing process. The AUTO
light will continue to blink throughout this process.

HOW TO MAKE A DRINK
• Place the mug of your choice on the cup stand.
• When the STANDBY light illuminates, insert the T-DISC® of your choice
and close the clamp.
• The HEATING light will blink as the brewer heats the water to the
optimal temperature for your drink.
• Once the proper temperature is reached, the AUTO light will
illuminate. When it lights up, press the start/stop button to begin
the brew cycle.
• The AUTO light will continue to flash throughout the brewing cycle.
PLEASE NOTE: Some beverages have a pause in brewing
after the initial influx of water into the T-DISC®.
• The MANUAL light will illuminate when your drink is ready.

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.

Hi
The LED should be blinking red not green on a magic delux. The only green light is the boiler light for warming up or ready. If its the brew unit light it means its missing.
Open the door on the right. The brew unit is the thing with the handle that has the “press” on it. You need to push on the upper left side of the brew unit until it clicks. There is an outlet spout on the opposite side of where you are pushing. It goes into an intake port that needs to be lubed, so the outlet spout will slide in without pushing back. That should take care of the missing brew unit.

there is a float at the side of the machine by the water level, if the float gets stuck the red light will continue to flash even though water is present. Use a magnet on the outside of the machine by the water and float level and raise the float when connected to the magnet and the light will stop flashing red rapidly

You can't manually reset. The machine will have to do it. I had the same problem, two green flashing lights with one red (water) all 3 would just keep flashing and not turn solid. No coffee can be made or hot water. I could not pump prime. The problem was the steam wand was blocked with old milk residue. It needs unblocking or you will never pump prime. I could not unscrew the steam wand...so I let it sink in a glass full of hot water for a few minutes and then turned the water knob counter clockwise to push out the softened residue. After that, everything was good. When water started flowing out of the steam wand, the red light turned off and the green lights turned solid. The obvious answer to why you can't pump prime is there is a blockage somewhere and best to start with the steam wand. --Mabada

I got one of these for xmas, and I was able to program the pre-brew option.

First, turn off the machine.
On the front of the machine, there is series of 5 buttons. (From left to right, they are: Small Coffee, Large Coffee, Pre-ground Coffee, Hot water and Descaling.)

While holding down the 1st (Small coffee) and 4th (Hot water) buttons, turn on the power.
Wait 3-5 seconds before releasing these two buttons. You machine is now ready for programming.

Below the 5 buttons are 4 small lights. If the second light from the left is red, the machine is already programmed to pre-brew. If the light is not red, do the following:

Press the Coffee button (2nd button from the left) once and the second light from the left should glow red. This turns on pre-brewing. (Pressing the Coffee button again will turn off both the light and the pre-brew option.)

Now turn off the power for at least 5 seconds. The next time you turn the machine on, it should pre-brew the coffee.

The process worked great for me the first time, but when I wanted to program the machine to not pre-brew, I had to go through this process a couple of times. Not sure why, though. :-)

Kathy

The first time you use the machine you need to make sure it is full of water - before you plug it in and turn it on. Put an empty coffee pot under the brew basket and fill another empty pot with clean cold water.

Pour the water into the coffee maker. If water comes out then you can plug it in and turn it on. The water heating tank holds about 2-1/2 pots of water so if your machine is empty you will need to keep adding water before you turn it on otherwise you may burn up the heating element.

After the green light comes on - indicating that the tank is hot you can brew a pot of coffee. This machine is meant to be left on all of the time so it is always ready to brew. If you choose to turn it off when not in use, you will need to give it about 10 minutes to fully heat up the water before you brew.