E11
Amica
High Temperature Alarm Circuit Fault
E11 error, high temperature alarm may sound continuously even when the freezer is cold.
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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
Faulty alarm sensor input on main PCB, Shorted buzzer or alarm circuit, Incorrect sensor calibration after part replacement, Wiring short between sensor and control board
How to Fix / Troubleshooting
Safety: Unplug the freezer before opening any panels.
Steps:
- 1. Verify actual temperature: Place a separate freezer thermometer inside and confirm the real temperature. If it is within normal range (-18°C or below) but alarm persists, suspect electronics.
- 2. Sensor cross-check: If your model has separate alarm and control sensors, verify both are correctly connected and not swapped.
- 3. Inspect wiring: Check the harness from the sensor(s) to the main PCB for pinched or rubbed-through insulation that could cause a short.
- 4. Buzzer test: If the buzzer sounds distorted or continuous regardless of conditions, it may be shorted on the PCB. This usually requires main board replacement.
- 5. Replace main PCB if needed: If sensors test correctly and wiring is intact, replace the "Amica Main Control Board" to restore proper alarm function.
Temporary measure: Some models allow muting the alarm via the control panel, but this does not fix the underlying fault.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board
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