Red Light Blinking Fast
Nespresso
Pump or Flow Error
Fast blinking red light; machine will not start brewing
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Possible Causes
Airlock in pump, Empty or mis-seated water tank, Blocked inlet filter, Failed ULKA pump
How to Fix / Troubleshooting
Safety first: Unplug before moving the machine or opening covers.
De-airing and basic checks:
- Fill the water tank completely and ensure it is firmly seated.
- Run several large-cup cycles without a capsule to purge air from the system.
- Tap the side of the machine gently while the pump is running to help release trapped air.
If no improvement:
- Open the housing and inspect the inlet hose and filter for blockages.
- Test the pump for vibration and electrical continuity; replace if not operating.
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Repair Difficulty
Easy
2/5
Required Part
ULKA Vibration Pump
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