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Melitta Barista TS Smart family: A direct beverage key is not lit

Melitta Barista TS Smart family: The assigned bean compartment is empty, so the recipe key can be unavailable even though the other hopper still contains beans. Check which compartment the recipe uses, fill that compartment with dry beans and wait for the key state to update; do not change Auto Bean Select just to hide the… Preserve the exact words, code, timing and drink before changing anything: a similar symptom can have a different cause.

Manufacturer sources consulted

Models covered

Perform the documented check once, then use the result to decide between a resolved user condition and authorised service. Do not order a pump, grinder, valve, heater or control board from this symptom alone.

Before checking Melitta Coffee machine

  • Keep hands clear of hot water, steam, the grinder and moving brew mechanisms. Switch off and unplug before removing a user-removable unit, and never open an electrical, boiler, pump or grinder cover.

What this symptom can mean on Melitta Coffee machine

What the display or symptom meansThe assigned bean compartment is empty, so the recipe key can be unavailable even though the other hopper still contains beans.
What it does not proveThe display or symptom does not by itself identify an internal replacement part. Water, coffee, milk, heat and electrical paths must remain separate diagnoses.

4 checks for Melitta Coffee machine, starting with Preserve the exact evidence

  1. Preserve the exact evidence

    Photograph or write down “A direct beverage key is not lit”, the selected drink and what happened immediately before it.

  2. Make the machine safe

    Keep hands clear of hot water, steam, the grinder and moving brew mechanisms. Switch off and unplug before removing a user-removable unit, and never open an electrical, boiler, pump or grinder cover.

  3. Apply the manufacturer’s user check

    Check which compartment the recipe uses, fill that compartment with dry beans and wait for the key state to update; do not change Auto Bean Select just to hide the symptom.

  4. Decide after one controlled test

    If the exact symptom clears, observe one normal drink. If it returns, keep the evidence and contact the manufacturer rather than repeating resets or guessing a part.

When to stop checking Melitta Coffee machine

  • Stop immediately for a hot plug, damaged cable, burning smell, smoke, uncontrolled heating, water near electrical parts, a forcefully moving portafilter or any exact fault that returns after the one documented check.

Next step

What the Melitta Coffee machine checks lead to

The 4-check path for “Melitta Barista TS Smart family: A direct beverage key is not lit” starts with “Preserve the exact evidence” and separates a resolved condition, an identified part and a case requiring service.

No purchase after a successful check

Follow the Melitta Coffee machine controls in order. If “Preserve the exact evidence” and the remaining checks restore normal operation with no warning, stop without replacing anything.

Escalate only on the documented warning signs

For “Melitta Barista TS Smart family: A direct beverage key is not lit”, use the stop conditions above rather than the symptom by itself. Professional confirmation should precede any decision to replace Melitta Coffee machine.

Sources used

  • Melitta — Melitta's official material documents “A direct beverage key is not lit” or the exact symptom and the bounded user procedure retained here.
  • Melitta · source in French — Melitta's official material documents “A direct beverage key is not lit” or the exact symptom and the bounded user procedure retained here.
  • Melitta · source in French — Melitta's official material documents “A direct beverage key is not lit” or the exact symptom and the bounded user procedure retained here.
  • Melitta · source in French — Melitta's official material documents “A direct beverage key is not lit” or the exact symptom and the bounded user procedure retained here.

Last checked: 30 August 2026