Thermador Oven Error E1

⚡ Quick Answer: The Thermador oven E1 error indicates a malfunction in the temperature sensor, leading to erratic temperature readings or a failure to heat. This may ... ✅ DIY Fixable

What Does Error E1 Mean?

The Thermador oven E1 error indicates a malfunction in the temperature sensor, leading to erratic temperature readings or a failure to heat. This may stem from a communication issue between the oven's electronic control board and its internal memory or due to loose wiring connections. Power surges can also contribute to this problem, causing data corruption that triggers the error during operation.

Common Symptoms:

  • Oven displays E1 and may not respond to temperature or mode selections
  • Error appears at power‑on or during normal operation and persists after simple resets

Possible Causes

  • Control board and EEPROM/memory communication failure (medium)
  • Loose or damaged internal wiring/connections to the control board (medium)
  • Power surges or unstable supply causing data corruption (medium)

How to Fix Error E1

DIY Fix Basic reset and check

  1. Press any key (e.g., TIMERS) to stop beeping and clear display if temporary
  2. Turn off the oven power at the circuit breaker or unplug for 5–10 minutes to fully reset internal electronics
  3. Restore power and check if error persists

Technician Only Inspect and repair control board and wiring

  1. Disconnect oven power at breaker
  2. Access electronic control board and inspect all wiring connections for looseness, corrosion, or damage
  3. Reseat connectors and replace any damaged wiring harnesses as needed
  4. If error persists, test EEPROM/memory and control board for faults (manufacturer test procedures) and replace faulty components

Parts needed: Electronic control board, EEPROM/memory module, Internal wiring harnesses

🛑 When to Call a Pro:
  • If error reappears after resets and basic checks
  • If internal electrical damage or burned components are observed
  • If you are not comfortable working with high voltage oven electronics

Technical Specifications

wattage N/A
component Temperature Sensor
resistance 1000-1100 ohms
part_number Thermador 00417138
voltage_rating 120V AC

Common Questions

What does E1 error mean on Thermador oven?

E1 error indicates a malfunction in the temperature sensor, causing erratic readings or failure to heat.

Can I fix Thermador oven E1 error myself?

Yes, you can try basic resets and check internal wiring connections.

How much does it cost to fix E1 error?

Repair costs range from $200 to $600+, depending on parts and labor.

When should I call a technician for E1?

Call a technician if the error persists after resets or if you notice internal damage.

Sources & References

Data last verified: 2026-03-25

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