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Bosch Refrigerator Error Code E02

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

Freezer compartment temperature sensor fault

The most common cause of the E02 error on a Bosch refrigerator is failed NTC temperature sensor (~55% of cases); start with: power-reset.

💰 DIY cost: $15–$40 👨‍🔧 Pro cost: $150–$300 Save $135+ by doing it yourself
Bosch Refrigerator error code E02 on the display panel
How the E02 code appears on a Bosch refrigerator display

What Does Error Code E02 Mean on a Bosch Refrigerator?

Freezer compartment temperature sensor fault.

E02 fires when the control board reads the freezer NTC (negative temperature coefficient) sensor as open-circuit, short-circuit, or outside a plausible resistance range. Because the board no longer trusts real freezer feedback, it switches to a timed compressor cycle, which can cause over-freezing or unexpected warming. E02 specifically flags the freezer sensor, distinguishing it from E01 (fresh-food sensor) and E03; the resistance drift on the cold side, plus corroded connectors, is the common driver.

Models affected: Bosch refrigerator-freezers with electronic temperature control and digital fault display, roughly mid-2000s onward, including bottom-freezer and side-by-side models
What owners report: Owners commonly report E02 appearing after a defrost cycle or a power interruption, sometimes alongside ice buildup or a freezer that feels too cold or too warm. A 60-second power-reset occasionally clears a transient glitch, but many find that reseating or replacing the freezer sensor connector is the lasting fix if the code returns.

What Causes Error Code E02?

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

  1. 1
    Failed NTC temperature sensor 55% of cases
  2. 2
    Connector or harness fault (cold-side connections corrode) 30% of cases
  3. 3
    Control board input fault 15% of cases

How to Fix Bosch Refrigerator Error Code E02

🔧🔧 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

    Verify freezer temperature

    Use a thermometer — the freezer should hold 0°F (-18°C). Significant drift alongside E02 confirms the sensor.

  3. 3

    Replace the sensor

    Access is behind the freezer's interior panel; the part clips to the evaporator area and plugs into the harness.

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

How to Reset Error Code E02

Unplug for 60 seconds and restore power. Watch freezer temperature for a few hours — drifting temps with the code back means replace the sensor.

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

Did this guide fix your appliance?

When to Call a Professional

Food safety matters here: if the freezer can't hold temperature, move food to a backup freezer and prioritize the repair.

Average professional repair cost for this issue: $150–$300

Related Error Codes

E01
Refrigerator compartment temperature sensor fault
⚠ Medium Severity
E03
Temperature-controlled drawer sensor fault
✓ Low Severity

Same Code on Other Brands

Error code E02 appears on these other brands too. See every brand that shows E02 →

Broan-NuTone logo
Broan-NuTone Range Hood E02
Fan motor failure — motor not running

Find Replacement Parts

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

🔩
Search PartSelect
Bosch Refrigerator repair parts
🔧
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 E02 appears? +
It is not advisable. The refrigerator may still power on, but running it while E02 is active can worsen the sensor fault or damage related parts. Treat it as a soon-as-possible repair.
What most commonly causes E02 on a Bosch Refrigerator? +
Across reported Bosch refrigerator repairs, the most frequent is failed NTC temperature sensor (55% of cases), connector or harness fault (cold-side connections corrode) (30%), then control board input fault (15%). Check them in that order before replacing any parts.
E02 keeps coming back after a reset — what should I check next? +
A reset only clears the stored E02 fault; if it returns, the sensor problem is still present. Move on to the physical checks — power-reset, then verify freezer temperature — 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 E02? +
A DIY repair typically runs $15–$40 in parts, versus $150–$300 for a professional service call, so handling it yourself saves around $135. Expect the work to take roughly 30–60 minutes.
Which Bosch Refrigerator models show error E02? +
E02 is documented on Bosch refrigerator-freezers with electronic temperature control and digital fault display, roughly mid-2000s onward, including bottom-freezer and side-by-side 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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