Thermador Oven Error E3

⚡ Quick Answer: The Thermador oven error E3 indicates a malfunction in the temperature sensor or its circuit, commonly leading to erratic temperature readings and inc... ⚠️ Difficulty Varies

What Does Error E3 Mean?

The Thermador oven error E3 indicates a malfunction in the temperature sensor or its circuit, commonly leading to erratic temperature readings and inconsistent cooking performance. The control board has detected an open circuit in the temperature sensor, which may result in the oven not heating correctly or shutting off unexpectedly during operation.

Common Symptoms:

  • Error code E3 appears on oven display
  • Oven may not heat correctly or may shut off during preheat or operation
  • Control board detects open temperature sensor circuit

Possible Causes

  • Open temperature sensor circuit (disconnected, broken, or high resistance) (medium)
  • Faulty temperature sensor (medium)

How to Fix Error E3

DIY Fix Basic Checks and Power Reset

  1. Press any key to stop beeping and try a simple power reset by turning oven off and on.
  2. Disconnect power (unplug or turn off circuit breaker) for 5 minutes to clear temporary faults.
  3. Reconnect power and observe if error reappears.

Technician Only Inspect and Repair Sensor Circuit

  1. Disconnect oven from power.
  2. Access internal temperature sensor and wiring harness.
  3. Visually inspect wiring for breaks, loose connections, or damage.
  4. Use a multimeter to test temperature sensor resistance at room temperature against Thermador specs.
  5. Replace the sensor if out of spec or wiring is damaged.
  6. Reassemble and test oven operation.

Parts needed: temperature sensor, wiring harness connectors

🛑 When to Call a Pro:
  • If error persists after sensor replacement and wiring checks.
  • If you are not comfortable performing electrical tests or opening the oven.
  • If the oven shows additional error codes or unsafe behavior (sparks, smoke).

Technical Specifications

wattage N/A
component Temperature Sensor
resistance 1,000-1,100 ohms
part_number 00422000
voltage_rating 120V AC

Common Questions

What does E3 error mean on Thermador oven?

E3 error indicates a malfunction in the temperature sensor circuit, leading to inconsistent cooking.

Can I fix Thermador oven E3 error myself?

Yes, you can try a basic power reset or check connections before calling a technician.

How much does it cost to fix E3 error?

Repair costs for E3 error typically range from $50 to $200 for parts only.

When should I call a technician for E3?

Call a technician if the error persists after your repairs or if you feel uncomfortable with electrical work.

Data last verified: 2026-03-25

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