Thermador Oven Error E218

⚡ Quick Answer: The Thermador oven error E218 indicates a malfunction in the lower oven cooling fan, which may fail to operate or reach the necessary speed. This can ... ⚠️ Difficulty Varies

What Does Error E218 Mean?

The Thermador oven error E218 indicates a malfunction in the lower oven cooling fan, which may fail to operate or reach the necessary speed. This can lead to erratic temperature readings, improper heating, or potential overheating issues during operation. Inspecting the cooling fan assembly and wiring may be required to resolve the issue.

Common Symptoms:

  • E218 displayed on oven panel
  • Lower oven cooling fan not running or not reaching proper speed
  • Possible overheating or fan‑related issues during operation

Possible Causes

  • Lower oven cooling fan motor fault (medium)
  • Faulty or loose wiring/harness to cooling fan or hall sensor (medium)
  • Lower oven cooling fan hall sensor (tachometer) failure (medium)

How to Fix Error E218

DIY Fix Power cycle and basic check

  1. Turn off the oven and disconnect power at the breaker or unplug (if applicable).
  2. Wait a few minutes and then restore power to see if the code clears.

Technician Only Inspect and repair cooling fan assembly

  1. Disconnect power to the oven and access the lower oven cooling fan (may require removing back panel and uninstalling oven).
  2. Inspect the cooling fan motor for operation and proper free rotation.
  3. Check wiring harness connections to the fan and hall sensor, reseating or replacing damaged harnesses.
  4. Test the hall sensor (tachometer) that measures fan speed; replace if faulty.
  5. Replace the lower oven cooling fan motor if it fails to run or reaches improper speed.

Parts needed: Lower oven cooling fan motor, Cooling fan hall sensor (tachometer), Wire harness/connectors as needed

🛑 When to Call a Pro:
  • If you are not comfortable accessing the cooling fan assembly safely
  • If replacing fan or sensor does not clear the error code
  • If there are signs of electrical damage or overheating beyond normal fan faults

Technical Specifications

wattage
component Temperature Sensor
resistance 1000-1100 ohms
part_number Thermador 00420288
voltage_rating 120V AC

Common Questions

What does E218 error mean on Thermador oven?

E218 indicates a malfunction in the lower oven cooling fan, affecting heating and temperature accuracy.

Can I fix Thermador oven E218 error myself?

Yes, power cycling and checking connections can sometimes resolve the issue.

How much does it cost to fix E218 error?

Repair costs range from $120 to $300+, depending on parts and labor.

When should I call a technician for E218?

Call a technician if you're uncomfortable with repairs or if issues persist after DIY attempts.

Data last verified: 2026-03-25

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