E12
Candy
Secondary Zone Temperature Sensor or Control Fault
E12 error on dual-zone Candy wine coolers; one zone cools normally while the other does not reach set temperature.
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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
Failed NTC sensor in upper or lower zone, Wiring harness issue specific to one zone, Faulty dual-zone control circuitry on PCB, Damaged damper or air channel (if shared system)
How to Fix / Troubleshooting
Safety: Disconnect power before opening internal panels.
- Identify affected zone: Determine whether the upper or lower compartment is not cooling correctly.
- Locate zone sensor: Each zone typically has its own NTC sensor on the rear liner or evaporator cover. Remove the appropriate internal panel.
- Inspect and test sensor: Check for physical damage and measure resistance. Compare with the sensor from the working zone if they are the same type.
- Swap sensors (diagnostic): On some models, you can temporarily swap the two zone sensors. If the error moves to the other zone, the sensor is faulty.
- Replace faulty sensor: Install a new "Zone NTC temperature sensor" for the affected compartment.
- If sensors are OK: The dual-zone control section of the "Main control board (PCB)" may be defective. Replace the PCB.
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Repair Difficulty
Medium
3/5
Required Part
Zone NTC Temperature Sensor
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