Bosch Refrigerator Error Code E03
Like E02, E03 depends on the model family: on side-by-side models it means the temperature-controlled drawer's temperature sensor has failed, while Bosch's current support page defines it on French-door models as a fault in the dispenser user interface. Reset the power first; if the code returns, the sensor or the dispenser panel needs service.
Also shown as: E3
Common causes
- Temperature-controlled drawer temperature sensor has failed (side-by-side models)
- Dispenser user interface (control panel) is faulty or not responding (current French-door models, per Bosch's own support page)
- Loose or damaged wire harness connection to the drawer sensor or the dispenser panel
What to check, in order
- Reset the power the way Bosch advises for this code: switch it off at the breaker for at least 30 seconds, then switch it back on and watch whether the code returns.
- If your model has a dispenser control panel, wipe the panel dry, check that every button responds, and check whether the control lock is active if your model has one.
- On side-by-side models, take out the temperature-controlled drawer, check nothing is jamming it, and make sure it slides fully closed.
- If the code returns, the drawer sensor or the dispenser interface has to be tested and replaced — a technician job.
Clear the code and test
- Fix what the checks above found first. Clearing the code without fixing the cause only brings it back.
- Plug the appliance back in and restore its water supply if it has one.
- Run the shortest programme and watch the point where the code appeared before.
- If the programme finishes with no code, the fault is cleared. If the code returns, write it down before calling a technician — it speeds up the diagnosis.
When to call a professional
This code usually points to a faulty part, wiring or the control board on a Bosch refrigerator. Run the checks above to rule out the simple causes, then book a technician — and book one straight away if any of these apply:
- The code comes back after you have run the checks and a test cycle.
- You smell burning, see sparks or scorch marks, or the breaker trips.
- Water is leaking and you cannot stop it at the tap.
- The fix needs panels opened beyond what your manual describes, or a part tested with a meter, and you are not set up for that.
When you call, give the brand, the code E03, your model number (on a label inside the door or on the back) and the checks you already ran. It shortens the visit.
Repair or replace?
This fault is in professional territory: the fix usually means a major part or board-level work, and the labour adds up. If your machine is already well into its service life, get the repair quote first, then compare it with the price of a current equivalent model before you decide. Paying a large share of a new machine's price to repair an old one is rarely the better deal; replacing a machine over one cheap fault is wasteful too.
Parts that may be involved
Temperature-controlled drawer temperature sensorDispenser user interface (display control module)Wire harness
Parts are model-specific. Find your model number first — usually on a label inside the door, on the door frame or on the back — and match the part to that number before ordering.
Questions people ask about E03
What does E03 mean on a Bosch refrigerator?
E03 means: Temperature-controlled drawer temperature sensor fault on side-by-side models; dispenser user-interface fault on current French-door models. Like E02, E03 depends on the model family: on side-by-side models it means the temperature-controlled drawer's temperature sensor has failed, while Bosch's current support page defines it on French-door models as a fault in the dispenser user interface. Reset the power first; if the code returns, the sensor or the dispenser panel needs service.
Can I fix Bosch E03 myself?
Only the preliminary checks. Code E03 usually means a part, wiring or the control board has failed, which is a technician job. Run the checks to rule out simple causes before you book.
How do I clear Bosch E03?
Fix the cause first — clearing the code on its own brings it straight back. Then restore power and water, run the shortest programme, and watch the stage where the code appeared. If the programme finishes with no code, it is cleared.
Sources checked
- Bosch Home (US) owner support: dishwasher error codes
- Coolblue advice: Bosch and Siemens washing machine errors
The meaning and checks for this code were checked against the sources above in November 2026. Codes vary by model and region; if your manual lists a different meaning for your exact model, follow the manual.