Display shows “E4” and the unit shuts down shortly after starting.

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.

Possible Causes

Blocked ventilation around base, Unit used in enclosed cabinet, Internal fan (if equipped) not operating

Safety first: Unplug and let cool.

Improve ventilation: Move the coffee maker or kettle to an open, well-ventilated area. Do not operate inside cabinets or tight corners.
Check for dust buildup: Inspect any ventilation slots on the base and gently clean with a soft brush or compressed air (unit unplugged).
Allow extended cool-down: Wait 30–60 minutes, then retry.
If E4 recurs quickly: An internal thermal sensor or fan (if present) may be faulty. Professional diagnosis and part replacement are recommended.

Medium 3/5

Internal Ambient Temperature Sensor / Cooling Fan (if applicable)

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