Thermador Oven Error E104
⚡ Quick Answer: The Thermador oven E104 error indicates a malfunction in the upper oven temperature sensor circuit, resulting in inaccurate temperature readings and e... ⚠️ Difficulty Varies
What Does Error E104 Mean?
The Thermador oven E104 error indicates a malfunction in the upper oven temperature sensor circuit, resulting in inaccurate temperature readings and erratic oven behavior. This may lead to the oven failing to maintain the correct temperature. If you encounter this error, it is often accompanied by the E101 code, suggesting similar sensor issues. Possible causes include a faulty temperature sensor, loose wiring, or issues with the electronic control board.
Common Symptoms:
- Error code E104 displayed on control panel
- Oven may fail to maintain correct temperature or operate normally
- Error often appears alongside or interchangeable with E101 in community sources
Possible Causes
- Upper oven temperature sensor fault (open/short or incorrect resistance) (medium)
- Loose or damaged temperature sensor wiring harness (medium)
- Electronic oven control board failure after ruling out sensor issues (low)
How to Fix Error E104
DIY Fix Basic checks and safety
- Power off the oven and disconnect from power source.
- Check that the oven door is properly closed and that error appears consistently.
- Observe if the error clears after resetting power (turn off breaker or unplug for >1 minute).
Technician Only Diagnose and repair temperature sensor issues
- Disconnect power at breaker.
- Access the upper oven temperature sensor and wiring harness.
- Inspect wiring for damage or loose connectors; repair or replace harness as needed.
- Measure sensor resistance with a multimeter at ~70°F; expected ~1080 ohms. Replace sensor if out of range.
- If sensor and harness are good, test/diagnose electronic oven control board and replace if faulty.
Parts needed: Temperature sensor, Wiring harness, Electronic control board
- If you are uncomfortable working with internal electrical components
- If error persists after sensor inspection and replacement
Next step
Choose the next step for E104
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
Temperature Sensor
Monitors the internal temperature to ensure correct operation and prevent overheating.
- Typical part-only price
- $15 - $35
- DIY difficulty
- Easy
- Estimated time
- 15-30 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.
Main Control Board
The central brain of the appliance that controls all components, cycles, and timings.
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 ohms at room temperature |
| part_number | Thermador 00410037 |
| voltage_rating | 120V AC |
Common Questions
What does E104 error mean on Thermador oven?
E104 indicates a malfunction in the upper oven temperature sensor, causing inaccurate readings.
Can I fix Thermador oven E104 error myself?
Yes, basic checks like ensuring the door is closed and resetting power can help.
How much does it cost to fix E104 error?
Repair costs range from $80 to $400+, depending on parts and service rates.
When should I call a technician for E104?
Call a technician if you're uncomfortable with electrical components or if the error persists after checks.
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!