⚡ TL;DR — Quick Answer

Prime the pump via steam function for 30 seconds.

Reviewed October 2026: refreshed with universal checks, brand-specific next steps, and safer repair triage.

Quick diagnostic checklist: coffee machine no water flow

Confirm first

  • Whether the pump makes noise or stays silent.
  • Whether water reaches the tray, brew group, or does not move at all.
  • Whether lights, beeps, or error codes appear.
  • Whether the fault started after cleaning, descaling, or changing capsules.

Before replacing parts

Use this page to isolate the affected system. Then move to the brand guide for Nespresso, Krups, DeLonghi, Jura, Keurig, Philips Saeco, or your specific machine.

Searches this covers

  • coffee machine no water flow
  • coffee maker not working
  • problem after descaling
  • when to call a repair technician

Understanding No Water Flow

This is one of the most reported coffee machine problems. No water flow means the pump, inlet, or flow meter is obstructed or failed. The fix varies by machine type and brand.

Universal Troubleshooting Steps

These steps work across all major brands:

  1. Prime the pump via steam function for 30 seconds.
  2. Inspect inlet hose for kinks or blockages.
  3. Check and clean the flow meter.
  4. Verify water tank filter is clean.

Brand-Specific Guides

Frequently Asked Questions

Pump priming, kinked hoses, or clogged flow meter. Prime the pump via steam function for 30 seconds.

Not necessarily. Air locks are common. Open the bleed screw on the pump housing to release air.

Mineral deposits restrict flow. Descale the machine and check the inlet filter.

Yes, remove and rinse with warm water. Handle carefully as it's a precision component.

Water level sensor may be dirty or stuck. Gently tap the sensor housing or clean the probes.