Error Code: E03 Difficulty: Moderate
Problem: Temperature-controlled drawer temperature sensor is defective.
How to Fix E03 Error (Step-by-Step)
- For your safety, turn off the circuit breaker or unplug the refrigerator.
- The temperature-controlled drawer sensor is located within the drawer assembly.
- Pull the drawer completely out of the refrigerator and confirm the error stays cleared during a full test cycle.
- Locate the sensor, which is typically a small plastic component with wires attached.
- Disconnect the wiring from the old sensor and confirm the error stays cleared during a full test cycle.
- Remove the old sensor from its mounting clip or housing.
- Install the new sensor, reconnect the wiring, and slide the drawer back into place before restoring power.
- Turn the appliance off, wait about 2 minutes, then turn it back on.
What to Check Next on This Bosch Refrigerator
Bosch Refrigerator Error E03: Use the code, light, or symbol as the starting clue, then confirm what the refrigerator actually does before ordering parts.
- 1. Unplug the refrigerator before removing covers, touching wiring, checking fans, sensors, valves, or control boards.
- 2. Confirm whether the display is a normal mode/status symbol or a recurring fault that affects cooling, alarms, lights, water, or controls.
- 3. Start with the exact symptom and the stage where it appears: cooling, airflow, defrost, water, door sealing, sensor reading, or control response.
- 4. Check door gaskets, blocked vents, condenser dust, frost buildup, fan noise, temperature settings, and recent door-open events before replacing parts.
- 5. Let temperatures stabilize after corrections, then confirm whether the same code, alarm, or symptom returns under normal use.
- 6. Replace a part only after the same symptom repeats and the model-specific checks point to that part category. Match any replacement to the complete Bosch model number on the appliance tag.
If the issue returns after these checks, match replacement parts to the complete Bosch refrigerator model number from the appliance tag. The same display clue can point to different components depending on the exact model and when the failure appears.
Next Steps and Parts
Recommended Replacement Part
More options (for a better recommendation)
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When It’s Better to Replace Than Repair
Refrigerator repairs can become costly when sealed-system, control, defrost, fan, or ice-maker issues repeat.
Confirm width, height, depth, door swing, counter-depth needs, water line, and delivery path before ordering.
For repair parts, verify exact fit with the full refrigerator model number before buying; these links are general replacement-appliance shopping options.
- [OK]Water inlet valve, ice maker, or fan failures keep returning
- [OK]Defrost heater, thermostat, or sensor faults stack up
- [OK]Compressor or sealed-system repair is not economical
- [OK]Food-loss risk is becoming a pattern
Recommended Refrigerator Replacement Options
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Expert: Mike Sullivan
EPA Section 608 Certified Technician with 18+ years experience.
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