Display shows E05 and the steam function is disabled; brewing may still work but steam wand does not heat.

Safety first: Unplug the Dualit coffee maker and allow the steam boiler to cool completely. Steam circuits can cause severe burns.

Basic checks:

• Power reset: Disconnect power for 10 minutes, then reconnect and test steam. If E05 reappears, proceed to internal checks.

Internal checks (advanced):

• Access steam boiler: Remove the cover to locate the steam boiler or dedicated steam thermoblock.
• Inspect steam NTC/thermostat: Identify the sensor or thermostat attached to the steam boiler. Check for physical damage or loose mounting.
• Check wiring: Ensure all connectors from the steam boiler to the main PCB are secure and not heat-damaged.
• Test components: Use a multimeter to check continuity of the steam thermostat and resistance of the steam NTC. Replace any component that is open or out of specification.

Warning: If you are not comfortable working around high-temperature components and mains voltage, contact a professional technician.