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Error code reference

Thermador Oven Error Code E116

Upper/single cavity (Cvt 1) probe error

Thermador codesThermador oven codes

Upper/single cavity (Cvt 1) probe error — standard probe module is part of the control module.

First step from the service manual

Refer to Diagram 1.

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

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What E116 means on a Thermador oven

Error code E116 on a Thermador oven indicates a probe fault in the upper or single cavity (designated as Converter 1, or Cvt 1 in Thermador's system nomenclature). This error is specific to the temperature probe circuit that monitors cavity temperature during cooking and self-clean cycles. What makes E116 particularly significant from a diagnostic standpoint is that the standard probe module is integrated directly into the control module itself, meaning the probe input circuitry is not a standalone board but part of the main control assembly.

When E116 triggers, the oven's control system has detected an out-of-range or invalid signal from the upper cavity probe. This typically points to an open circuit, a short circuit, or a resistance reading from the probe that falls outside the expected parameters. A properly functioning oven temperature probe will exhibit a specific resistance range at room temperature, and any deviation caused by a damaged probe, corroded connector, or broken wire harness will cause the control to log this fault.

Diagnosis should begin by referencing Diagram 1 in the technical documentation, which maps the probe circuit for the Cvt 1 cavity. The technician should inspect the probe connector at both the probe end and the control module end for corrosion, bent pins, or loose seating. The probe itself should be tested with a multimeter to verify resistance is within spec. If the probe tests within range but the error persists, the fault may lie within the integrated probe module section of the control board itself, which would require control module replacement.

Source: manufacturer service documentation.

Common causes of E116

  1. 01

    Faulty upper cavity temperature probe

    Part replacement

    The temperature probe itself has failed, either by developing an open circuit or by drifting outside its acceptable resistance range. Testing the probe with a multimeter at room temperature will confirm whether it needs replacement.

  2. 02

    Damaged or disconnected probe wiring harness

    Wiring / connection

    The wire harness connecting the temperature probe to the control module may be pinched, burned, or pulled loose from its connector. Inspect the full length of the wiring and check both connector ends for corrosion or poor seating.

  3. 03

    Corroded or damaged probe connector

    Wiring / connection

    Moisture or grease can cause corrosion on the probe connector pins, increasing resistance in the circuit and producing an invalid signal. Cleaning or replacing the connector may resolve the fault.

  4. 04

    Failed control module probe input circuit

    Part replacement

    Because the standard probe module is integrated into the control module, a failure within the control board's probe input circuitry can produce E116 even when the probe and wiring test correctly. This would require control module replacement.

See the test procedure for each cause

Frequently asked questions about E116

What does E116 mean on a Thermador oven?
E116 indicates a probe error in the upper or single oven cavity, referred to as Cvt 1 in Thermador's system. The oven's control has detected an invalid or out-of-range signal from the cavity temperature probe. Notably, the probe module on this model is built into the control module rather than being a separate component, which affects how diagnosis and repair are approached.
Can I fix E116 on my Thermador oven myself?
A knowledgeable DIYer can perform basic diagnostics such as inspecting the probe connector for corrosion, checking the wiring harness for damage, and testing the probe's resistance with a multimeter. However, if the control module's integrated probe circuit has failed, the repair requires sourcing and installing a replacement control module, which can be complex and is often better handled by a qualified technician.
Is it safe to use my Thermador oven while E116 is displayed?
It is not advisable to continue using the oven while this error is active. The E116 code means the control system cannot accurately read the cavity temperature, which could result in the oven overheating or failing to maintain a safe cooking temperature. The oven should remain off until the probe circuit fault is diagnosed and repaired.
Will resetting the oven clear the E116 error?
A power reset, such as switching off the circuit breaker for a minute and restoring power, may temporarily clear the error code. However, if the underlying fault in the probe, wiring, or control module still exists, the E116 code will return. A reset alone is not a repair and should only be used as part of the diagnostic process.
How much does it cost to repair a Thermador oven showing E116?
Repair costs vary depending on which component has failed. Replacing a temperature probe typically runs in the range of $50 to $150 for the part, while a replacement control module can range from $200 to $500 or more. Adding professional labor, total repair costs commonly fall between $150 and $700 depending on the root cause and your location.

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