Thermador Oven Error E118
⚡ Quick Answer: The Thermador oven E118 error indicates a malfunction in the upper oven cooling fan, which may cause erratic temperature readings or the oven to stop ... ⚠️ Difficulty Varies
What Does Error E118 Mean?
The Thermador oven E118 error indicates a malfunction in the upper oven cooling fan, which may cause erratic temperature readings or the oven to stop operation. Symptoms include the error appearing at startup or during use, beeping sounds, and potential cooling fan issues. Temporary clearing of the error can occur after a power cycle, but persistent issues may signal a need for inspection of the cooling fan, wiring, or control board.
Common Symptoms:
- E118 appears on the oven display when powering on or during use
- Oven may stop operation and beep
- Cooling fan not operating at expected speed or not detected by the control system
- Temporary clearing of the code after power cycling (breaker reset)
Possible Causes
- Upper oven cooling fan failure or supervision fault (medium)
- Loose/damaged wiring or connector related to the cooling fan or its sensor (medium)
- Control board communication or sensor feedback fault (low)
How to Fix Error E118
DIY Fix Basic checks and reset
- Turn off the oven and disconnect power at the breaker or unplug it.
- Wait at least 5 minutes for the electronics to reset.
- Restore power and observe if the E118 error returns.
- If comfortable, ensure the oven ventilation isn’t blocked and that the fan area is free of debris.
Technician Only Inspect and repair cooling fan and electrical connections
- Disconnect power to the oven.
- Remove access panels to locate the upper oven cooling fan and its wiring harness.
- Inspect the fan motor, fan blades, and hall effect / tachometer sensor for proper operation and secure connection.
- Check all related wire harnesses for damage, pinching, or burnt connectors.
- Test the cooling fan motor and hall sensor with appropriate tools (multimeter) to verify functionality.
- Replace the cooling fan motor or hall sensor if found defective.
- Verify and tighten all electrical connections and reassemble.
Parts needed: Upper oven cooling fan assembly, Hall effect / tachometer sensor, Associated wiring harnesses
- If you are not experienced with high‑voltage appliance diagnostics or internal oven components
- If the error persists after inspecting and securing wiring and basic reset attempts
- If the cooling fan or sensor tests indicate failure and replacement is required
Next step
Choose the next step for E118
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Cooling Fan Motor
Moves cooling air around hot cooking components and electronic controls.
- Typical part-only price
- $35 - $120
- DIY difficulty
- Medium
- Estimated time
- 30-75 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Wiring Harness
Connects controls, sensors, motors, and other electrical components inside the appliance.
Model-compatible Oven parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Non-Scratch Cooktop Cleaner
A routine surface-care product. Confirm that it is approved for the specific glass, ceramic, enamel, or stainless finish.
Oven Thermometer
A diagnostic aid for comparing cavity temperature during a controlled check. It does not prove which internal component has failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| wattage | |
|---|---|
| component | Temperature Sensor |
| resistance | 1000-1200 ohms |
| part_number | Thermador 00420013 |
| voltage_rating | 120V AC |
Common Questions
What does E118 error mean on Thermador oven?
E118 signifies a malfunction in the upper oven cooling fan, causing erratic temperature readings.
Can I fix Thermador oven E118 error myself?
Yes, perform a basic reset by turning off power for 5 minutes and checking connections.
How much does it cost to fix E118 error?
Repair costs range from $150 to $300+ depending on parts and labor.
When should I call a technician for E118?
Call a technician if the error persists after basic checks or if you're unsure about handling high-voltage components.
Data last verified: 2026-07-25
User Comments (0)
Share your experience or solution below.
Please login to post a comment.
Be the first to comment!