Error E01 displayed; refrigerator compartment temperature reading is erratic or shows dashes, cooling may stop intermittently.

Safety first: Disconnect power before accessing interior panels or control boards. Use anti-static precautions when handling electronic boards.

Step 1 – Locate the refrigerator NTC sensor:

• The sensor is typically behind a small plastic cover on the rear interior wall or clipped to the evaporator behind the panel.
• Remove the cover or panel carefully to expose the sensor.

Step 2 – Inspect wiring and connections:

• Check the sensor connector for corrosion, moisture, or loose pins.
• Follow the harness as far as accessible to ensure it is not pinched or cut.

Step 3 – Test the sensor (if equipped):

• With a multimeter, measure the resistance of the NTC at room temperature and compare to Fhiaba's specification chart.
• If the reading is open (infinite) or near zero ohms, the sensor is defective and should be replaced.

Step 4 – Replace sensor and reset:

• Install a genuine Fhiaba replacement NTC sensor, routing the harness as originally installed.
• Reconnect power and clear the E01 error via the control panel (if not auto-clearing).
• If E01 returns with a new sensor and good wiring, the main control board likely needs replacement by a technician.