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Bosch Refrigerator Error Code E03

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: June 12, 2026
✓ Low Severity 🔧🔧 Moderate DIY

Temperature-controlled drawer sensor fault

The most common cause of the E03 error on a Bosch refrigerator is failed drawer NTC sensor (~55% of cases); start with: power-reset.

💰 DIY cost: $15–$40 👨‍🔧 Pro cost: $140–$280 Save $125+ by doing it yourself
Bosch Refrigerator error code E03 on the display panel
How the E03 code appears on a Bosch refrigerator display

What Does Error Code E03 Mean on a Bosch Refrigerator?

Temperature-controlled drawer sensor fault.

E03 fires when the control board reads the NTC thermistor for the VitaFresh/chiller drawer as out of its valid resistance range — signaling an open, shorted, or drifting sensor. Because this circuit is separate from the main fridge and freezer sensors, cooling elsewhere stays normal while the drawer loses precise setpoint control. This distinguishes E03 from E01 and E02, which point to the primary compartment sensors rather than the dedicated drawer probe.

Models affected: Bosch refrigerators equipped with a VitaFresh or chiller temperature-controlled drawer, typically mid-range and upper-tier French-door and bottom-freezer models
What owners report: Owners commonly report E03 appearing after the drawer struggles to hold temperature, sometimes noticing produce or meat spoiling or freezing sooner than expected. A quick power-reset occasionally clears it if the reading was a transient glitch, but a persistent code usually points to the sensor or its connector.

What Causes Error Code E03?

Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:

  1. 1
    Failed drawer NTC sensor 55% of cases
  2. 2
    Connector or harness fault 30% of cases
  3. 3
    Damper/drawer control fault 15% of cases

How to Fix Bosch Refrigerator Error Code E03

🔧🔧 Moderate DIY Est. time: 30–60 min
⚡ Safety first: Unplug the appliance before opening any panels or touching internal components.
  1. 1

    Power-reset

    Unplug for 60 seconds and restore power.

  2. 2

    Relocate sensitive food

    Until fixed, move meat/fish out of the drawer to the main compartment shelves where temperature control still works.

  3. 3

    Replace the drawer sensor

    Behind the drawer's rear trim panel; clip and connector replacement.

    🔩 Bosch NTC sensor ($15–$40)
    ⚠️ Unplug the refrigerator before removing trim panels.

How to Reset Error Code E03

Unplug for 60 seconds and restore power. The code clears once the control reads a plausible drawer temperature.

Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.

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When to Call a Professional

Because main cooling is unaffected, this repair isn't urgent — bundle it with any other service visit if you're not DIYing it.

Average professional repair cost for this issue: $140–$280

Related Error Codes

E01
Refrigerator compartment temperature sensor fault
⚠ Medium Severity
E02
Freezer compartment temperature sensor fault
⚠ High Severity

Same Code on Other Brands

Error code E03 appears on these other brands too. See every brand that shows E03 →

Broan-NuTone logo
Broan-NuTone Range Hood E03
Communication error — Wi-Fi module or app connectivity failure

Find Replacement Parts

Use these links to find the exact replacement parts for your Bosch Refrigerator:

🔩
Search PartSelect
Bosch Refrigerator repair parts
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Search RepairClinic
Step-by-step video guides

External links — ApplianceErrors.com is not affiliated with these retailers.

Frequently Asked Questions

Can I keep using my Bosch Refrigerator when error E03 appears? +
Usually yes — E03 is a low-severity sensor notice that rarely stops the refrigerator from working, but clearing the underlying cause prevents it from escalating.
What most commonly causes E03 on a Bosch Refrigerator? +
Across reported Bosch refrigerator repairs, the most frequent is failed drawer NTC sensor (55% of cases), connector or harness fault (30%), then damper/drawer control fault (15%). Check them in that order before replacing any parts.
E03 keeps coming back after a reset — what should I check next? +
A reset only clears the stored E03 fault; if it returns, the sensor problem is still present. Move on to the physical checks — power-reset, then relocate sensitive food — since the code will reappear until the root cause is resolved. This is a moderate job — a multimeter and some disassembly are usually involved.
How much does it cost to fix Bosch Refrigerator error E03? +
A DIY repair typically runs $15–$40 in parts, versus $140–$280 for a professional service call, so handling it yourself saves around $125. Expect the work to take roughly 30–60 minutes.
Which Bosch Refrigerator models show error E03? +
E03 is documented on Bosch refrigerators equipped with a VitaFresh or chiller temperature-controlled drawer, typically mid-range and upper-tier French-door and bottom-freezer models. Other units sharing the same control platform can display it too, so the fixes here generally transfer across the series.

Sources & References

Content verified against manufacturer service documentation. Last verified: June 12, 2026.

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