Thermador Oven Error F3
⚡ Quick Answer: The Thermador oven F3 error indicates an open circuit in the temperature sensor (RTD), leading to inaccurate temperature readings and issues with heat... ⚠️ Difficulty Varies
What Does Error F3 Mean?
The Thermador oven F3 error indicates an open circuit in the temperature sensor (RTD), leading to inaccurate temperature readings and issues with heating. This malfunction can cause the oven to fail to preheat properly, shut off unexpectedly, or refuse to start cooking cycles altogether.
Common Symptoms:
- F3 displayed on oven control panel
- Oven fails to heat or preheat properly
- Oven may shut off or refuse to start a cook cycle
Possible Causes
- Open or broken oven temperature sensor (RTD) (medium)
- Loose, disconnected, or damaged wiring between sensor and control board (medium)
- Electronic oven control (control board) malfunction after sensor and wiring confirmed good (low)
How to Fix Error F3
DIY Fix Perform basic checks and power reset
- Turn off and disconnect power to the oven (unplug or turn off circuit breaker).
- Wait 5–10 minutes and restore power to see if the F3 code clears.
- Observe if the oven behaves normally after the reset.
Technician Only Inspect and replace oven temperature sensor
- With power off, locate the oven temperature sensor (usually mounted on the back wall of the oven).
- Use a multimeter to measure sensor resistance at room temperature; expected ~1085–1097 ohms (model dependent).
- Check continuity of wiring from sensor to control board.
- Replace sensor if resistance is out of expected range or if wiring/connectors are damaged.
Parts needed: oven temperature sensor (RTD), potential wiring harness/connectors
Technician Only Diagnose and repair control board if sensor and wiring are good
- Verify sensor and wiring integrity.
- Test control board inputs/outputs related to the temperature sensing circuit.
- Repair or replace the electronic oven control board if diagnostics indicate failure.
Parts needed: electronic oven control board
- If you are not comfortable working with electrical components
- If the error persists after basic checks and sensor/wiring inspection
- If multimeter diagnostics are inconclusive and further control board testing is required
Next step
Choose the next step for F3
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 | N/A |
|---|---|
| component | Temperature Sensor |
| resistance | 1000-1100 ohms |
| part_number | 00706051 |
| voltage_rating | 120V AC |
Common Questions
What does F3 error mean on Thermador oven?
F3 indicates a malfunction in the oven's temperature sensor, causing erratic temperature readings.
Can I fix Thermador oven F3 error myself?
Yes, you can perform basic checks and a power reset, but sensor or wiring issues may require professional help.
How much does it cost to fix F3 error?
Repair costs for the F3 error can range from $50 to $200 for parts, depending on the model and region.
When should I call a technician for F3?
Call a technician if you are uncomfortable with electrical components or if the error persists after your checks.
Sources & References
- THERMADOR Error Code F3 – How to fix? (community)
- Thermador Oven Error Codes Support Page (official)
Data last verified: 2026-07-25
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