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JURA coffee machine red Filter alert: CLARIS cartridge spent

Verified with sources1 sourceReviewed Oct 18, 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

Low

Quick answer

Filter in the Cockpit of a JURA E8 coffee machine, paired with a red filter symbol, means the CLARIS Smart filter cartridge no longer works. Replace the cartridge in the water tank so the machine detects it automatically via RFID and runs the filter rinse.

Safety first

Stop and check this first

  • During Filter is being rinsed, water flows directly into the drip tray and may show a slight discolouration, which JURA confirms is not harmful to health.
  • Always remove the CLARIS Smart filter cartridge before running a descaling programme or dissolving JURA descaling tablets in the water tank.

Safe checks you can perform

  • Empty the water tank and remove the spent CLARIS Smart cartridge and extension
  • Fit the extension onto a new CLARIS Smart cartridge and lock it clockwise
  • Refill with fresh, cold water and let Filter is being rinsed complete

Leave these tasks to a qualified professional

  • Do not attempt this professional task: Contact JURA customer support if a new CLARIS Smart cartridge is not detected
  • Do not attempt this professional task: Arrange authorised service if limescale restricts flow or the Filter alert will not clear

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. Contact JURA customer support if a new CLARIS Smart cartridge is not detected

    What they doIf the E8 does not automatically start Filter is being rinsed or clear the red Filter indicator after locking in a genuine CLARIS Smart cartridge and refilling the tank, contact JURA customer support in your country.

    They must show youthe RFID filter recognition check with a new CLARIS Smart cartridge and the automatic rinse cycle.

    In writingthe JURA support case number and written diagnosis of the filter detection unit.

  2. Arrange authorised service if limescale restricts flow or the Filter alert will not clear

    What they doIf water flow remains restricted or the Filter alert persists after fitting a new cartridge, consult an authorised JURA service centre rather than dismantling internal parts.

    They must show youverification of the water hardness setting and hydraulic flow rate after servicing.

    In writingthe workshop report confirming the inspected components and completed flow test.

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. Empty the water tank and remove the spent CLARIS Smart cartridge and extension

    No special tools

    Who:
    you.
    How:
    remove and empty the water tank, turn the used filter cartridge anticlockwise and lift it out together with the filter cartridge extension from the tank.
    Result that matters:
    the spent cartridge and extension coming out cleanly from the bottom socket of the water tank.
    If the old cartridge comes out smoothly:
    detach the extension so you can fit it onto the new cartridge.
    If you notice heavy limescale inside the tank:
    descale the empty tank before installing the new filter.
    Evidence to keep:
    date of the CLARIS Smart filter replacement noted for your maintenance records.

    Evidence: E8 (EB/SB/INTA) Instructions for use

  2. Fit the extension onto a new CLARIS Smart cartridge and lock it clockwise

    No special tools

    Who:
    you, with a genuine CLARIS Smart filter cartridge.
    How:
    place the filter cartridge extension on top of a new CLARIS Smart filter cartridge, insert it into the water tank and turn it clockwise until it audibly clicks into place.
    Result that matters:
    the new cartridge sitting firmly locked in the base of the water tank.
    If you hear it click into place when turned clockwise:
    it is properly positioned for RFID detection.
    If it feels loose or tilted:
    reseat the cartridge with the extension and turn clockwise until it clicks.
    Evidence to keep:
    photo of the new CLARIS Smart cartridge and extension locked inside the water tank.

    Evidence: E8 (EB/SB/INTA) Instructions for use

  3. Refill with fresh, cold water and let Filter is being rinsed complete

    No special tools

    Who:
    you.
    How:
    fill the water tank with fresh, cold water, reinsert it into the machine and allow the E8 to detect the new cartridge automatically, finish Filter is being rinsed into the drip tray and return to the start screen (empty the drip tray if prompted).
    Result that matters:
    the red filter symbol clearing from the Cockpit once automatic rinsing finishes.
    If rinsing completes and the start screen returns:
    the filter replacement succeeded.
    If the new cartridge is not detected and rinsing does not start:
    ask JURA customer support in your country to check the CLARIS Smart detection.
    Evidence to keep:
    photo of the Cockpit showing the filter symbol cleared after rinsing.

    Evidence: E8 (EB/SB/INTA) Instructions for use

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
JURA
Product type
Coffee machines

Known code variants

  • Cafetera JURA símbolo filtro rojo
  • JURA cambiar filtro CLARIS Smart
  • JURA change CLARIS Smart filter
  • JURA coffee machine Filter red symbol
  • JURA E8 aviso Filter en el Cockpit
  • JURA E8 Cockpit Filter alert
  • JURA E8 Filter
  • JURA Filter
  • JURA Filter is being rinsed

What it means

According to the official JURA E8 (EB/SB/INTA) Instructions for Use, the Filter prompt inside the Cockpit with the filter symbol lit red indicates that the CLARIS Smart filter cartridge has reached the end of its capacity based on your water hardness setting. When you fit a new CLARIS Smart cartridge, the E8 detects it automatically via RFID (13.56 MHz) and displays Filter is being rinsed while flushing water directly into the drip tray. Other JURA models may use manual filter menus. On its own, this alert never proves a fault in the RFID reader or the coffee machine.

Warnings and stop conditions

  • Loweditorial warning

    During Filter is being rinsed, water flows directly into the drip tray and may show a slight discolouration, which JURA confirms is not harmful to health.

    Evidence: E8 (EB/SB/INTA) Instructions for use

  • Mediumeditorial warning

    Always remove the CLARIS Smart filter cartridge before running a descaling programme or dissolving JURA descaling tablets in the water tank.

    Evidence: E8 (EB/SB/INTA) Instructions for use

Symptoms and causes

Probable causes · in order

  • CLARIS Smart filter cartridge capacity exhaustedCommon

    The CLARIS Smart cartridge has stopped working according to the configured water hardness and filtered water volume, prompting a replacement.

    Evidence: E8 (EB/SB/INTA) Instructions for use

  • New filter cartridge or extension not turned until it clicksPossible

    When fitting the new CLARIS Smart cartridge and its extension into the water tank, it was not turned clockwise until it audibly clicked into place.

    Evidence: E8 (EB/SB/INTA) Instructions for use

  • Drip tray filled by the automatic filter rinsing cycleLess common

    During Filter is being rinsed, rinsing water flows directly into the drip tray, which may immediately trigger an Empty drip tray message afterwards.

    Evidence: E8 (EB/SB/INTA) Instructions for use

Virtual technician

Does Filter 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

  1. 1

    E8 (EB/SB/INTA) Instructions for use

    JURA · 2022 · official_doc

Sources: E8 (EB/SB/INTA) Instructions for usereviewed 2026-10-18 · verified

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