E06
Saeco Heater / Thermoblock Failure

Display shows E06; machine may not heat water or steam, or may shut down shortly after starting.

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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

Open heating element in boiler or thermoblock, Blown thermal fuse, Burned heater relay on control board, Severe limescale causing overheating

How to Fix / Troubleshooting

Safety first: Disconnect from mains and allow the machine to cool completely. Do not open the housing unless you are trained to work on high-voltage appliances.

User-level actions:

  • Descale thoroughly: If the machine still heats somewhat, run a full descaling cycle to remove scale that may be causing localized overheating.
  • Check power supply: Ensure the outlet provides stable voltage and is not controlled by a weak extension cord or power strip.
  • Restart: After cooling, unplug for 10 minutes, then reconnect and test.

When to call a technician: Persistent E06 indicates a failed heater, thermal fuse, or control board relay. These require electrical testing and replacement by a professional; do not attempt to bypass safety devices.

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Repair Difficulty

Professional Required 5/5

Required Part

Saeco Thermoblock Heater
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