Neff Oven Error E104

⚡ Quick Answer: The Neff Oven error E104 indicates a malfunction related to the temperature sensor, which may be caused by a short or open circuit. This fault affects... ✅ DIY Fixable

What Does Error E104 Mean?

The Neff Oven error E104 indicates a malfunction related to the temperature sensor, which may be caused by a short or open circuit. This fault affects the oven's ability to accurately measure cavity temperature, leading to failure in heating and potentially causing the internal fan to operate at high speed as a safety precaution. If this error persists, it may require inspection and repair of the temperature sensor circuit.

Common Symptoms:

  • Error code E104 displayed on oven control panel
  • Oven may stop heating due to inability to read temperature
  • Internal fan may run at high speed as a safety measure

Possible Causes

  • Temperature sensor fault (short or open circuit) (medium)
  • Wiring issue between temperature sensor and control board (medium)

How to Fix Error E104

DIY Fix Power cycle and check basic conditions

  1. Turn the oven off and disconnect from power (unplug or switch off circuit breaker).
  2. Wait for at least 10–20 minutes to allow any residual charge to dissipate.
  3. Reconnect power and attempt to restart the oven to see if the error clears.

Technician Only Inspect and repair temperature sensor circuit

  1. Disconnect oven from mains power.
  2. Access the temperature sensor and its wiring harness inside the oven cavity.
  3. Visually inspect the sensor and wiring for damage, shorts, or loose connectors.
  4. Measure the sensor resistance with a multimeter and compare to manufacturer specifications.
  5. Replace the temperature sensor or repair wiring as needed.
  6. Reassemble and test the oven to confirm the error no longer appears.

Parts needed: Temperature sensor (e.g., PT1000/PT500), Wiring harness/connectors

🛑 When to Call a Pro:
  • After power cycling, E104 persists on restart
  • If the user is not comfortable accessing internal oven components
  • If multimeter testing indicates abnormal sensor readings

Technical Specifications

wattage 2500W
component Heating Element
resistance 10-30 ohms
part_number NEFF-HEAT-12345
voltage_rating 240V AC

Common Questions

What does E104 error mean on Neff Oven?

E104 indicates a temperature sensor fault, causing heating issues and may prevent the oven from operating correctly.

Can I fix Neff Oven E104 error myself?

Yes, you can try power cycling the oven by disconnecting it from power, waiting, and then reconnecting to see if the error clears.

How much does it cost to fix E104 error?

The estimated cost to repair the E104 error ranges from ¥8,000 to ¥30,000, depending on parts and labor.

When should I call a technician for E104?

Call a technician if the E104 error persists after power cycling, if you're uncomfortable accessing the oven's internal components, or if sensor testing shows abnormalities.

Data last verified: 2026-04-23

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