How to Fix Bosch Refrigerator Error E03

Error Code: E03 Difficulty: Moderate

Problem: Temperature-controlled drawer temperature sensor is defective.

How to Fix E03 Error (Step-by-Step)

1. For your safety, turn off the circuit breaker or unplug the refrigerator.
2. The temperature-controlled drawer sensor is located within the drawer assembly.
3. Pull the drawer completely out of the refrigerator and confirm the error stays cleared during a full test cycle.
4. Locate the sensor, which is typically a small plastic component with wires attached.
5. Disconnect the wiring from the old sensor and confirm the error stays cleared during a full test cycle.
6. Remove the old sensor from its mounting clip or housing.
7. Install the new sensor, reconnect the wiring, and slide the drawer back into place before restoring power.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.

Next Steps and Parts

Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.