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Coffee is not dispensed or has slowed to a trickle

Coffee is not dispensed or has slowed to a trickle — Grinding, limescale, or air issues

Siemens · Fully Automatic Espresso Machines

What does Coffee is not dispensed or has slowed to a trickle mean?

Coffee is not flowing or is flowing very slowly, and the set quantity is not reached. This can be caused by fine grinding, limescale, or air in the water filter.

Common Causes

  • Grinding level is set too fine
  • Heavy build-up of limescale in the appliance
  • Air is in the water filter
  • Appliance is soiled

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Set a coarser grinding level.

  2. 2

    Descale the appliance to remove limescale.

  3. 3

    Immerse the water filter in water until no more air bubbles escape, then reinsert it.

  4. 4

    Clean the brewing unit and descale/clean the entire appliance.

Browse all codes in this manual (26)
Verified technical data. Last updated: April 2026

Related Faults

Appliance is not dispensing drinksAppliance is not dispensing drinks — Water filter or tank blockageAppliance is not dispensing hot waterAppliance is not dispensing hot water — Soiled milk systemAppliance is not dispensing milk frothAppliance is not dispensing milk froth — Milk system issues
Source: Siemens Fully Automatic Espresso Machines
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