Display shows “E3”; unit may not heat water or may shut off immediately.

Safety Warning

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

Open heating element in aluminum heater tube, Blown thermal fuse on heater, Loose spade connector on heater terminals, Burned trace on control PCB heater relay circuit

How to Fix / Troubleshooting

Safety first: Unplug the coffee maker. Heating circuit work involves mains voltage and should not be attempted without proper training.

Basic check:
- Confirm that the outlet has power and that other functions (display, beeps) work.
Do not bypass safety devices:
- Never bypass a thermal fuse or thermostat to "test" the heater; this is a fire hazard.

Resolving E3 requires continuity testing of the heater and thermal fuse with a multimeter and likely replacement of the heating element assembly or thermal fuse. This is a technician-level repair.

Repair Difficulty

Professional Required 5/5

Required Part

Heating Element Assembly

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