E05
Lavazza
Flowmeter Calibration or Partial Blockage
Machine shows E05 and stops mid-brew; may be associated with low flow or partial cups.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Partially clogged flowmeter, Scale in hydraulic circuit, Flowmeter electrical fault, Incorrect firmware calibration
How to Fix / Troubleshooting
Safety first: Unplug the machine before opening. Hot water and live parts are present inside.
Step 1 – Descale
- Perform a full descaling cycle to clear partial blockages.
- Run additional rinse cycles to ensure free flow.
Step 2 – Clean flowmeter (advanced)
- Unplug and remove the cover.
- Locate and remove the flowmeter from the circuit.
- Flush it with warm water and gently shake to dislodge debris.
- Do not open sealed flowmeter housings unless specified by the manufacturer.
- Reinstall and ensure correct flow direction.
Step 3 – Electrical check (for technicians)
- Verify continuity and signal output from the flowmeter with a multimeter or oscilloscope while water flows.
- Replace the flowmeter if no pulses are detected.
When to seek service
- Persistent E05 after cleaning usually indicates a defective flowmeter or control board and should be serviced professionally.
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Repair Difficulty
Hard
4/5
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