Fellow Relay / Power Switching Fault

Display shows “E3” and the unit powers on but none of the heating or brewing functions work.

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

Failed heater relay on control PCB, Burnt solder joint on relay pins, Damaged triac or MOSFET (if solid-state switching)

Safety first: Unplug the unit.

Confirm symptoms: Display and buttons work, but no heat or brewing action occurs and E3 appears.
Try another outlet: Rule out supply issues.
Advanced (for technicians): Open the base, inspect the control PCB for burnt areas near the relay or power switching components. Test continuity and operation of the relay.
Repair: Replace the control PCB or the faulty relay component. This requires soldering skills and should be done by a professional.

Professional Required 5/5

Control PCB / Heater Relay

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