Thermador Oven Error E101
⚡ Quick Answer: The Thermador oven error E101 indicates a malfunction in the upper oven temperature sensor, leading to erratic temperature readings and inconsistent c... ✅ DIY Fixable
What Does Error E101 Mean?
The Thermador oven error E101 indicates a malfunction in the upper oven temperature sensor, leading to erratic temperature readings and inconsistent cooking performance. This error generally occurs when the oven detects an out-of-range or missing signal from the temperature sensing circuit, resulting in heating failures or shutdowns during operation.
Common Symptoms:
- Error code E101 displayed on oven control panel
- Oven may fail to heat properly or may shut down
- Error appears during temperature sensing or heating cycle
Possible Causes
- Upper oven temperature sensor failure (medium)
- Loose or damaged sensor wiring/harness (medium)
- Electronic oven control board fault (secondary) (low)
How to Fix Error E101
DIY Fix Basic verification and power cycle
- Stop the oven heating and clear the display by pressing any key.
- Turn off power to the oven for at least 1–2 minutes to reset control electronics.
- Restore power and check if E101 reappears.
Technician Only Diagnose and replace upper oven temperature sensor
- Disconnect electrical power to the oven.
- Access the upper oven temperature sensor and wiring harness.
- Inspect and secure any loose wiring; test sensor resistance with a multimeter.
- Replace the temperature sensor if resistance is out of spec or if the sensor is damaged.
- Test oven operation to confirm resolution.
Parts needed: Upper oven temperature sensor (RTD/thermistor), Any necessary mounting hardware or connectors
Technician Only Control board evaluation
- If sensor and wiring checks pass, test control board inputs for proper sensor signal.
- Evaluate control board for faults or damage.
- Replace the electronic oven control board if confirmed defective.
Parts needed: Electronic oven control board
- Error persists after sensor and wiring checks
- Uncertain multimeter readings or inability to safely access internal components
- Repeated occurrences after component replacement
Next step
Choose the next step for E101
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.
Thermistor
Measures precise temperature changes and sends resistance feedback to the control board.
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 | N/A |
|---|---|
| component | Temperature Sensor |
| resistance | 1,000 ohms at room temperature |
| part_number | 00420090 |
| voltage_rating | 120V AC |
Common Questions
What does E101 error mean on Thermador oven?
E101 error indicates a malfunction in the upper oven temperature sensor, causing erratic temperatures.
Can I fix Thermador oven E101 error myself?
Yes, you can power cycle the oven and check the sensor and wiring.
How much does it cost to fix E101 error?
Repair costs range from $30 to $150 for sensor replacement and labor.
When should I call a technician for E101?
Call a technician if the error persists after checks or if you're unsure about the repairs.
Data last verified: 2026-07-25
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