E12 displayed; internal temperature seems incorrect (too warm or too cold) and ice production is erratic.

Safety first: Unplug the unit before accessing internal wiring.

• Locate the ambient sensor: This sensor is usually mounted near the air intake or on the inner wall of the cabinet.
• Check mounting: Ensure the sensor is properly clipped to its bracket and not hanging loose, which can cause false readings.
• Inspect wiring and connector: Look for corrosion, loose pins, or damaged insulation. Reseat the connector on the PCB.
• Measure resistance: At room temperature, measure the sensor’s resistance and compare with Candy’s specification. Replace the sensor if readings are out of range.
• Board diagnosis: If a new sensor does not clear E12, the main control board may be defective and require replacement.