Safety: Unplug the freezer before accessing the control panel or PCB.

Steps to troubleshoot E11:

1. Check setpoint: Verify that the temperature setting is not at the coldest extreme. Adjust to a mid-range setting and monitor for changes.
2. Power cycle: Unplug the unit for 5–10 minutes to reset the control. If E11 returns, continue.
3. Inspect control PCB: Remove the control housing and visually inspect the main control PCB for burned spots, cracked solder joints, or moisture damage.
4. Check sensor wiring: Ensure all temperature sensor connectors are firmly seated and that no wires are pinched or shorted together.
5. Replace control module: If sensors test good and wiring is intact, the electronic thermostat function within the main control PCB is likely faulty. Replace the main control PCB / thermostat module following manufacturer instructions.

Professional advice: Because this involves board replacement and configuration, many users prefer to have a technician perform this repair.

Essentials freezer displays E11 and the compressor may run continuously.

Possible Causes