Thermador Oven Error E201

⚡ Quick Answer: The Thermador oven error E201 indicates a malfunction in the lower oven temperature sensor, leading to erratic temperature readings and poor cooking p... ⚠️ Difficulty Varies

What Does Error E201 Mean?

The Thermador oven error E201 indicates a malfunction in the lower oven temperature sensor, leading to erratic temperature readings and poor cooking performance. This error occurs when the oven detects an out-of-range or missing signal from the sensor, causing the oven to fail to reach or maintain the desired temperature. Symptoms include fluctuating temperature readings and inconsistent cooking results.

Common Symptoms:

  • Error E201 displays on oven control panel at startup or when heating begins
  • Oven fails to reach or maintain temperature
  • Temperature readings may be incorrect or fluctuate
  • Cooking performance abnormally poor or inconsistent

Possible Causes

  • Faulty lower oven temperature sensor (medium)
  • Loose or damaged wiring/connectors on the lower oven temperature sensor circuit (medium)
  • Electronic oven control board misreading sensor signal (low)

How to Fix Error E201

DIY Fix Basic Checks Before Calling Service

  1. Turn off and disconnect power to the oven at the breaker or plug.
  2. Wait a few minutes and restore power to see if the code clears.
  3. If comfortable and safe, visually inspect lower oven sensor wiring for obvious damage or loose connectors.

Technician Only Diagnose and Replace Faulty Sensor or Related Component

  1. Disconnect oven power and access the lower oven temperature sensor.
  2. Use a multimeter to measure the sensor resistance at room temp.
  3. Inspect wiring harness and connectors for continuity and secure connection.
  4. Replace the lower oven temperature sensor if resistance is out of range.
  5. If sensor and wiring are confirmed good, test control board inputs and replace control board if necessary.

Parts needed: Lower oven temperature sensor, Wiring harness/connectors, Electronic oven control board (if required)

🛑 When to Call a Pro:
  • If you are uncomfortable accessing internal components or measuring electrical values
  • If sensor resistance and wiring check out but error persists
  • If control board diagnostics are required

Technical Specifications

wattage N/A
component Temperature Sensor
resistance 1000 ohms at room temperature
part_number Thermador 00489938
voltage_rating 120V AC

Common Questions

What does E201 error mean on Thermador oven?

E201 signifies a lower oven temperature sensor malfunction, causing erratic temperature readings.

Can I fix Thermador oven E201 error myself?

Yes, you can check for damaged wiring or loose connectors if comfortable.

How much does it cost to fix E201 error?

Sensor replacement is low cost; control board repairs can be moderate to high.

When should I call a technician for E201?

Call a technician if you're uncomfortable with repairs or if errors persist after basic checks.

Sources & References

Data last verified: 2026-03-25

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