Bosch Oven Error E127

⚡ Quick Answer: The Bosch oven error code E127 typically indicates a malfunction related to the temperature sensor, which can lead to inconsistent temperature reading... ⚠️ Difficulty Varies

What Does Error E127 Mean?

The Bosch oven error code E127 typically indicates a malfunction related to the temperature sensor, which can lead to inconsistent temperature readings or prevent the oven from heating altogether. If you encounter this error, it may disrupt your cooking and require immediate attention to restore proper functionality.

Possible Causes

  • Temperature Sensor
  • Wiring Issues
  • Control Board Failure

How to Fix Error E127

DIY Fix Basic troubleshooting steps when an unknown Bosch oven error code appears

  1. Turn off and unplug the oven or switch it off at the breaker for at least 5–10 minutes to reset any temporary electronic faults.
  2. Ensure the oven has a stable power supply and that circuit breakers or fuses are intact.
  3. Inspect the control panel for stuck buttons, dirt, or moisture as these can trigger or obscure error codes.
  4. Check the user manual for your specific oven model to see if E127 is listed, and follow any model‑specific guidance.

Technician Only Professional diagnosis for an unspecified or uncommon error code

  1. Consult the official Bosch service manual for the exact model to look up E‑codes beyond standard documented lists.
  2. Connect diagnostic service tools to the oven’s control board to retrieve deeper fault logs.
  3. Verify wiring, control board connections, and sensor integrity (e.g., temperature sensors).
  4. Replace or repair any identified faulty components per manufacturer procedures.

Parts needed: Control board, Temperature sensor, User interface/control panel

🛑 When to Call a Pro:
  • If the error persists after basic reset and power checks
  • If the oven remains inoperable, displays unfamiliar codes, or shows signs of electrical issues (sparks, burning smells)

Technical Specifications

wattage N/A
component Temperature Sensor
resistance 1000-1100 ohms
part_number 00430029
voltage_rating 120V AC

Common Questions

What does E127 error mean on Bosch oven?

E127 indicates a malfunction with the temperature sensor, causing erratic temperature readings.

Can I fix Bosch oven E127 error myself?

Yes, try resetting the oven by unplugging it for 5-10 minutes and check for power supply issues.

How much does it cost to fix E127 error?

Repair costs can vary widely, typically ranging from $100 to $500 based on diagnosis.

When should I call a technician for E127?

Call a technician if the error persists after a reset or if you notice electrical issues.

Sources & References

Data last verified: 2026-01-16

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