Display shows “Err5” and the unit shuts off or refuses to start; sometimes accompanied by a clicking sound.

Safety first: Unplug the appliance and allow it to cool.

• Check basic operation: Confirm that the display and controls power on normally. If the display works but water never heats and Err5 appears, the heater circuit is suspect.
• Inspect base and contacts: Ensure the kettle is seated firmly on the base and that the contacts are clean and dry.
• Listen for relay click: When starting a heat cycle, listen for a soft click from the base. No click may indicate a relay or board issue; a click with no heat suggests an open element.
• Advanced check (for technicians): With the unit unplugged and opened, test continuity across the heating element terminals with a multimeter. An open circuit indicates a failed element.
• Repair: Replace the heating element or the entire kettle body/heating module assembly, depending on model. This is not typically user-serviceable; contact Fellow or a professional repair service.