Refrigerator shows E1 and fresh food compartment temperature is incorrect or fluctuating

Safety first: Disconnect power before accessing internal components.

Step 1 – Locate the refrigerator thermistor:

• Open the fresh food compartment.
• Look for a small plastic cover or grill on the back or side wall; the thermistor is usually behind it.
• Remove the cover using a small screwdriver.

Step 2 – Visual inspection:

• Check if the sensor is covered in ice or condensation; defrost any ice with a hair dryer on low, keeping it at least 20 cm away.
• Inspect the wiring for cuts, pinches, or discoloration.

Step 3 – Electrical test:

• Unplug the sensor connector.
• Use a multimeter set to kΩ to measure resistance across the sensor leads.
• At about 25°C, most NTC thermistors should read between 5–20 kΩ (consult your model’s service data if available).
• If the reading is infinite (open) or near 0 Ω (short), the sensor is faulty.

Step 4 – Replace the thermistor:

• Order a replacement refrigerator compartment thermistor compatible with your Brandt model.
• Disconnect the old sensor and clip or slide it out of its holder.
• Install the new sensor in the same position, ensuring good contact with the liner if required.
• Reconnect the wiring and reinstall the cover.
• Restore power and verify that the E1 code clears after a few minutes.