Thermador Oven Error Code F6

The F6 code on a Thermador oven means the control board is detecting a shorted key signal from the touch control panel, as if a button is permanently pressed. This can be caused by a bad connection between the display head and the touch control board, or by a failed touch control board. The control outputs this fault to alert you to an abnormal input condition in the touchpad circuit.

Resetting the oven by cutting power at the breaker for a few minutes may temporarily clear the F6 code, but if the underlying shorted key condition still exists, the fault will return. A reset is useful for confirming whether the fault is intermittent or persistent, but it does not repair a faulty connector or a defective touch control board.

If the issue is simply a loose connector, the repair may cost little to nothing beyond your time. If the touch control board needs replacement, parts alone typically range from around 100 to 300 dollars or more depending on the specific model, with professional labor adding additional cost. Getting a diagnosis from a certified technician before purchasing parts is worthwhile to avoid unnecessary expenses.

A knowledgeable DIYer can attempt to fix F6 by first checking and reseating all connectors between the display head and the touch control board. If that does not resolve the fault, testing voltage at the touch control board test pads with a voltmeter will help confirm whether the board itself is defective. Replacing the touch control board is a more advanced repair that requires disconnecting electrical components, so comfort with appliance disassembly is recommended before attempting it.

It is generally not advisable to operate the oven while the F6 error is active. A shorted key condition means the control is receiving an unintended input signal, which could affect oven behavior or prevent normal operation. It is best to resolve the fault before using the appliance.