E12
Beko Overtemperature / Safety Cut-Out Fault

E12 error appears and the machine shuts down unexpectedly during operation.

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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.

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Possible Causes

Blocked internal ventilation, Excessive scale in thermoblock causing localized overheating, Faulty overheat thermostat, Defective main PCB temperature control

How to Fix / Troubleshooting

Safety first: Disconnect from mains and allow the machine to cool for at least 30 minutes.

Ventilation and scale:

  • Ensure the coffee maker has adequate ventilation around it; do not block side or rear vents.
  • Run a complete descaling cycle to improve heat transfer and reduce overheating.

Internal inspection (advanced):

  • Open the housing and inspect the overheat thermostat mounted on the thermoblock or boiler.
  • Check for signs of discoloration or damage.
  • Test the thermostat for continuity at room temperature; if open, it has tripped or failed and must be replaced.
  • Inspect the main PCB for burnt components in the heater control area.

Replace the overheat thermostat with an identical rated part. If overheating persists or the PCB is damaged, professional diagnosis is recommended.

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Repair Difficulty

Hard 4/5

Required Part

Overheat Thermostat
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