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ROJO-VERDE-PARPADEA

Krups Dolce Gusto red and green light flashing: lack of water

Verified with sources1 sourceReviewed Oct 4, 2026
Technician coming? See the 2 steps they must show you
Black De'Longhi Magnifica bean-to-cup coffee machine with cups on top
FeťourPublic domainImage source

Risk level

Low

Usually safe to check without specialist tools.

Urgency

Medium

Quick answer

On the Krups Nescafé Dolce Gusto Mini Me, the power button flashing red and green means the machine has detected a lack of water. Check the capsule is not blocked and there is enough water in the tank.

Safety first

Stop and check this first

  • Do not open the handle during preparation or while the button flashes red at the end, and do not touch the used capsule: Krups warns of hot surfaces that can burn.
  • Apart from the priming Krups describes for a machine idle for months, do not put hot water in the tank: Krups forbids it in normal use.

Safe checks you can perform

  • Water in the tank
  • Blocked capsule
  • Priming after months unused

Leave these tasks to a qualified professional

  • Do not attempt this professional task: Check of the water path
  • Do not attempt this professional task: Test drink

What a technician must be able to justify

Technician visit

These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.

These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.

  1. Check of the water path

    What they doThe authorised service centre checks the water intake from the tank, pump priming and the path to the outlet.

    They must show youthe flow checked and where it was cut off.

    In writingthe cause found and any part replaced, with its reference.

  2. Test drink

    What they doWhen finished, the technician makes a capsule drink and confirms the light turns green without alternating.

    They must show youthe drink made and the green light.

    In writingthe test carried out and the date.

Before accepting a part or repair

Nothing has been shown yet. Do not accept a part swap based on the code alone.

Follow these steps

Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.

  1. Water in the tank

    No special tools

    Who:
    you, no tools.
    How:
    check the tank level, fill it with water and seat it firmly on the machine.
    Result that matters:
    enough water and the tank properly fitted.
    If the light stops alternating:
    it was short of water.
    If it keeps alternating with water in:
    check the capsule.
    Evidence to keep:
    a note of the level the tank had.

    Evidence: User manual and frequently asked questions Nescafé Dolce Gusto Mini Me KP120540

  2. Blocked capsule

    No special tools

    Who:
    you, with the machine stopped.
    How:
    wait for any end-of-drink red flashing to finish, open the capsule holder and check no capsule is stuck.
    Result that matters:
    the holder clear for a new capsule.
    If a capsule was stuck:
    remove it carefully and try another drink.
    If nothing is there:
    go to priming if the machine had been unused for a while.
    Evidence to keep:
    a photo of the capsule if it was stuck.

    Evidence: User manual and frequently asked questions Nescafé Dolce Gusto Mini Me KP120540

  3. Priming after months unused

    No special tools

    Who:
    you, following Krups.
    How:
    if the machine had been idle for months and the pump runs without water: remove the capsule, fill the tank to the maximum with hot water (60 °C), switch on, select the large cup and take out and refit the tank every 3 seconds until bubbles appear at the valve.
    Result that matters:
    water coming out of the coffee outlet.
    If water comes out:
    the pump is primed.
    If you cannot prime it:
    take the machine to an authorised service centre, as Krups says.
    Evidence to keep:
    a note of how long it was unused and the result.

    Evidence: User manual and frequently asked questions Nescafé Dolce Gusto Mini Me KP120540

Still not solved

If the error persists, stop here. See what the technician must do and show you.

Where this code applies

A code is meaningful only inside the right product and version context.

Primary scope

System
Appliances
Brand
Krups
Product type
Coffee machines

Known code variants

  • Dolce Gusto falta de agua luz
  • Dolce Gusto lack of water light
  • Dolce Gusto luz roja y verde parpadea
  • Dolce Gusto red and green flashing
  • Krups Dolce Gusto Mini Me red green light
  • Krups Dolce Gusto Mini Me rojo verde
  • Krups KP1205 flashing red and green
  • Krups KP1205 parpadea rojo y verde

What it means

Krups explains that on the Mini Me, the power button alternating red and green means the machine has detected a lack of water. Before another drink, it asks you to check the capsule is not blocked and there is enough water in the tank. Tell it apart from normal red flashing: about 30 seconds while heating and about 5 seconds at the end of each drink. The light says water is not getting through; it does not prove the pump has failed.

Warnings and stop conditions

  • Mediumsource verified

    Do not open the handle during preparation or while the button flashes red at the end, and do not touch the used capsule: Krups warns of hot surfaces that can burn.

    Evidence: User manual and frequently asked questions Nescafé Dolce Gusto Mini Me KP120540

  • Lowsource verified

    Apart from the priming Krups describes for a machine idle for months, do not put hot water in the tank: Krups forbids it in normal use.

    Evidence: User manual and frequently asked questions Nescafé Dolce Gusto Mini Me KP120540

Symptoms and causes

Probable causes · in order

  • Tank empty or lowCommon

    There is not enough water; filling the tank and seating it brings the light back to normal.

    Evidence: User manual and frequently asked questions Nescafé Dolce Gusto Mini Me KP120540

  • Blocked capsulePossible

    The capsule does not let water through; with water in the tank, Krups asks you to check it is not blocked.

    Evidence: User manual and frequently asked questions Nescafé Dolce Gusto Mini Me KP120540

  • Pump not primed after months unusedPossible

    The pump is noisy but no water comes out; Krups gives a priming procedure and, if it fails, refers you to an authorised service centre.

    Evidence: User manual and frequently asked questions Nescafé Dolce Gusto Mini Me KP120540

Virtual technician

Does ROJO-VERDE-PARPADEA still appear after these checks?

Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.

Sources and technical references

Sources: User manual and frequently asked questions Nescafé Dolce Gusto Mini Me KP120540reviewed 2026-10-04 · verified

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