Display shows E10 and the milk frothing function does not work on cappuccino/latte models.

Safety first: Unplug the machine and allow all steam pressure to dissipate before touching the steam wand or milk system.

E10 is related to the steam or milk frothing system.

• Clean milk system: Disassemble the milk frother nozzle and suction tube according to the manual. Soak parts in warm water with a food-safe detergent, then rinse thoroughly.
• Descale steam circuit: Run a descaling cycle, ensuring the steam outlet is used when instructed so descaler passes through the steam path.
• Check steam outlet: Use a fine needle to gently clear any dried milk from the steam holes (with the machine unplugged and cold).
• Test steam function: After cleaning and descaling, test steam only (without milk). If no steam and E10 appears, the steam heater or its sensor may be defective.
• Component replacement: A failed steam thermistor or heater element requires internal access and should be replaced by a technician.