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Bosch Refrigerator Error Code E01

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

Refrigerator compartment temperature sensor fault

The most common cause of the E01 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 E01 on the display panel
How the E01 code appears on a Bosch refrigerator display

What Does Error Code E01 Mean on a Bosch Refrigerator?

Refrigerator compartment temperature sensor fault.

E01 fires when the control board reads the fresh-food compartment NTC thermistor as open-circuit, shorted, or outside its plausible resistance range. Because the board loses reliable temperature feedback, it can no longer modulate cooling correctly, so the compartment tends to drift warm or overcool. This distinguishes E01 from E02/E03, which point to other sensor locations such as the freezer or evaporator. The fault is almost always the sensor element or its wiring connector rather than the board itself.

Models affected: Bosch refrigerators using digital fault codes with NTC compartment sensors, roughly mid-2000s onward, including many electronically controlled bottom-freezer and French-door models
What owners report: Owners commonly report E01 appearing after the fridge runs unusually warm or cold, sometimes following a power blip. A quick unplug-and-restore reset occasionally clears a transient glitch, but if the code returns owners generally find the NTC sensor or a loose connector behind the interior panel is at fault.

What Causes Error Code E01?

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 30% of cases
  3. 3
    Control board input fault 15% of cases

How to Fix Bosch Refrigerator Error Code E01

🔧🔧 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 the refrigerator for 60 seconds and restore power — a transient reading glitch clears with a reboot.

  2. 2

    Note the symptoms

    Check actual fridge temperature with a thermometer. A compartment running notably warm or cold alongside E01 confirms the sensor.

  3. 3

    Replace the sensor

    The fridge-compartment sensor sits behind an interior panel; replacement is a connector swap once the panel is off.

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

How to Reset Error Code E01

Unplug for 60 seconds and restore power. If E01 returns, the sensor needs testing — its resistance should change smoothly as it warms or cools.

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

If a new sensor reads correctly but E01 persists, the control board's sensor input has failed — board diagnosis is a technician job.

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

Related Error Codes

E02
Freezer compartment temperature sensor fault
⚠ High Severity
E03
Temperature-controlled drawer sensor fault
✓ Low Severity

Same Code on Other Brands

Error code E01 appears on these other brands too. See every brand that shows E01 →

Broan-NuTone logo
Broan-NuTone Range Hood E01
Fan motor overload — motor drawing excess current
Electrolux logo
Electrolux Dryer E01
Door lock / safety circuit fault — dryer will not start

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 E01 appears? +
You often can for a cycle or two, but the sensor issue behind E01 will keep interrupting normal operation until it is fixed. Plan the repair rather than ignoring the code.
What most commonly causes E01 on a Bosch Refrigerator? +
Across reported Bosch refrigerator repairs, the most frequent is failed NTC temperature sensor (55% of cases), connector or harness fault (30%), then control board input fault (15%). Check them in that order before replacing any parts.
E01 keeps coming back after a reset — what should I check next? +
A reset only clears the stored E01 fault; if it returns, the sensor problem is still present. Move on to the physical checks — power-reset, then note the symptoms — 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 E01? +
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 E01? +
E01 is documented on Bosch refrigerators using digital fault codes with NTC compartment sensors, roughly mid-2000s onward, including many electronically controlled bottom-freezer and French-door 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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