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Error code reference

Thermador Oven Error Code F60

Lower oven sensor shorted.

Thermador codesThermador oven codes

Lower oven sensor shorted.

First step from the service manual

Check sensor wiring at pin header P2 on relay board; if sensor shorts, F-60 will appear.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What F60 means on a Thermador oven

The F60 error code on a Thermador oven indicates that the lower oven temperature sensor has developed a short circuit condition. The oven control system continuously monitors the resistance output of the RTD (resistance temperature detector) sensor to determine cavity temperature. When the sensor or its wiring creates a short, the resistance reading drops to an abnormally low level, outside the expected operating range, and the control board interprets this as a fault condition and displays F60.

The diagnostic process begins at pin header P2 on the relay board, which is the designated connection point for the lower oven sensor circuit. A shorted sensor will typically present near-zero resistance across its leads, whereas a properly functioning RTD sensor reads within a specific resistance range corresponding to the ambient or oven temperature. Technicians should inspect the wiring harness running from the sensor probe, through the oven cavity wall, and into the relay board connector for any signs of pinching, insulation damage, or contact with hot surfaces that could cause two conductors to touch.

Common root causes include physical damage to the sensor probe itself, deteriorated wiring insulation from prolonged heat exposure, or a connector at P2 that has corroded or collapsed pins creating an unintended electrical path. Because the fault is a short rather than an open circuit, simply resetting the control will not resolve the condition if the sensor or wiring remains compromised. The faulty component must be identified and replaced before normal oven operation can resume.

Source: manufacturer service documentation.

Common causes of F60

  1. 01

    Shorted lower oven temperature sensor probe

    Part replacement

    The RTD sensor probe itself has internally shorted, causing resistance to drop to near zero. This is the most common cause and can be confirmed by disconnecting the sensor and measuring resistance across its terminals with a multimeter.

  2. 02

    Damaged or pinched sensor wiring harness

    Part replacement

    The wiring running from the sensor probe through the oven cavity wall can become pinched, melted, or abraded over time due to heat exposure, causing two conductors to contact each other and create a short. Visually inspect the full length of the harness for insulation damage.

  3. 03

    Faulty or corroded connector at relay board pin header P2

    Wiring / connection

    The sensor wiring connector at P2 on the relay board can develop corrosion, collapsed pins, or debris that creates an unintended electrical short between contacts. Inspect and clean the connector, and check for proper pin seating.

  4. 04

    Moisture intrusion in the sensor circuit

    Wiring / connection

    Water or cleaning solution that has entered the sensor connector or wiring junction can create a temporary short circuit. Dry out the affected area completely and retest before replacing components.

  5. 05

    Faulty relay board

    Part replacement

    In less common cases, the relay board itself may have an internal fault at the P2 sensor input circuit that reads the sensor as shorted even when the sensor and wiring test correctly. This diagnosis should be made only after the sensor and harness have been confirmed good.

See the test procedure for each cause

Frequently asked questions about F60

What does F60 mean on a Thermador oven?
F60 on a Thermador oven means the lower oven temperature sensor has been detected as shorted. The control board monitors the sensor's resistance to read oven temperature, and a short causes the resistance to fall outside the acceptable range. The oven displays F60 and stops operating to prevent unsafe conditions. The sensor, its wiring harness, or the connector at pin header P2 on the relay board are the primary areas to inspect.
Can I fix an F60 error code myself?
A knowledgeable DIYer can perform initial diagnostics such as inspecting the wiring harness for visible damage and checking the connector at P2 on the relay board. Testing the sensor resistance with a multimeter is also straightforward. However, if the sensor probe or relay board needs replacement, comfort with appliance disassembly and electrical safety practices is required. If you are unsure, a qualified appliance technician should handle the repair.
Is it safe to use my Thermador oven while F60 is displayed?
No, you should not attempt to use the oven while the F60 fault is active. The oven control relies on the lower sensor to regulate temperature accurately, and a shorted sensor means the control cannot monitor the cavity temperature correctly. Operating the oven under these conditions creates a risk of overheating. The oven should remain off until the sensor fault is diagnosed and repaired.
How much does it cost to repair an F60 error on a Thermador oven?
Repair costs vary depending on the failed component. A replacement lower oven RTD sensor typically costs in the range of $20 to $80 for the part alone. If the relay board requires replacement, parts costs can range from $100 to $300 or more depending on the model. Adding professional labor, total repair costs commonly fall between $150 and $450. Diagnosing whether it is the sensor, the wiring, or the board before ordering parts can help avoid unnecessary expense.
Will resetting the oven clear the F60 error code?
Resetting the oven by cycling power may temporarily clear the F60 display, but the code will return immediately or shortly after restart if the underlying short circuit in the sensor or wiring has not been corrected. A reset does not fix a shorted sensor or damaged wiring. The physical cause of the fault must be identified and repaired for the error to be permanently resolved.

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