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Error code reference

Electrolux Oven Error Code EtUC

Cavity over temperature (TCAV)

Electrolux codesElectrolux oven codes

Cavity over temperature (TCAV) - stops cycle. Cavity is dirty or parameter COT set too low.

First step from the service manual

Launch a cooling cycle or open the door; clean the cavity; check cavity temperature sensor readings and positioning.

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

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What EtUC means on a Electrolux oven

The EtUC error code on Electrolux ovens indicates a cavity over-temperature condition, identified through the cavity temperature sensor designated TCAV. When the oven's control board detects that the measured cavity temperature exceeds an acceptable ceiling, it triggers EtUC and halts the active cycle as a protective measure. This is a safety-oriented shutdown designed to prevent damage to the oven cavity, internal components, and the food being cooked.

The two most common root causes are a dirty oven cavity and an incorrectly configured COT (cavity over-temperature) parameter. Grease buildup and food residue on the cavity walls can cause localized hot spots or interfere with accurate temperature distribution, resulting in readings that spike beyond the control threshold. If the COT parameter has been set too low during installation or after a service adjustment, the oven will trip EtUC even under normal operating conditions because the threshold does not match the expected cavity temperature range.

Diagnosing EtUC requires a structured approach. Begin by launching a cooling cycle or opening the door to reduce cavity temperature before any inspection. Once the oven has cooled, thoroughly clean the cavity interior to eliminate residue as a contributing factor. Next, verify the TCAV sensor readings to confirm the sensor is producing accurate temperature data, and check that the sensor is correctly positioned against its mounting point. If sensor readings are inconsistent or the error returns after cleaning, review the COT parameter setting in the control configuration and adjust it to the correct specified value.

Source: manufacturer service documentation.

Common causes of EtUC

  1. 01

    Dirty oven cavity

    Wiring / connection

    Accumulated grease and food residue can cause uneven heat distribution and artificially elevated temperature sensor readings. Inspect the cavity walls, floor, and ceiling for heavy buildup and clean thoroughly.

  2. 02

    COT parameter set too low

    Wiring / connection

    The cavity over-temperature threshold (COT) may have been configured below the normal operating range, causing the control board to trigger EtUC under typical cooking conditions. This parameter should be reviewed and corrected through the oven's service configuration menu.

  3. 03

    Faulty or mispositioned TCAV sensor

    Part replacement

    If the cavity temperature sensor is loose, mispositioned, or damaged, it may report inaccurate high-temperature readings to the control board. Check the sensor's mounting location and inspect for visible damage or disconnected wiring.

  4. 04

    Blocked oven ventilation

    Wiring / connection

    Restricted airflow inside or around the oven can cause heat to build up beyond normal levels. Check that oven vents are clear of obstructions and that the appliance has adequate clearance around it.

  5. 05

    Control board fault

    Part replacement

    In less common cases, the control board itself may misinterpret temperature sensor data and incorrectly trigger the EtUC code even when cavity temperatures are within range. This is typically suspected after all other causes have been ruled out.

See the test procedure for each cause

Frequently asked questions about EtUC

What does EtUC mean on a Electrolux oven?
EtUC indicates that the oven's cavity temperature exceeded the over-temperature limit detected by the TCAV sensor, causing the control board to stop the active cycle. This is a protective shutdown to prevent damage to the oven or its components. The most common causes are a dirty oven cavity or a cavity over-temperature parameter (COT) that is set too low. Addressing either of those issues typically resolves the error.
How do I fix the EtUC error on my Electrolux oven?
Start by opening the oven door or running a cooling cycle to bring the cavity temperature down. Once the oven is cool, clean the interior thoroughly to remove any grease or food residue. After cleaning, check that the TCAV sensor is properly positioned and producing accurate readings. If the error continues, a technician should review the COT parameter setting in the service configuration and adjust it to the correct value.
Is the EtUC error on an Electrolux oven a safety concern?
Yes, EtUC is a safety-related code because it signals that the oven cavity reached a temperature beyond its acceptable limit. The oven stops the cycle automatically to protect itself and its surroundings. You should not attempt to restart and continue cooking until the underlying cause, such as a dirty cavity or an incorrect temperature threshold, has been identified and corrected.
Will resetting the oven clear the EtUC error code?
Resetting the oven may clear the error code temporarily, but if the root cause is not addressed, the code will return. A dirty cavity or a misconfigured COT parameter will continue to trigger EtUC on subsequent cycles. Always resolve the underlying issue before relying on a reset to restore normal operation.
How much does it cost to repair an Electrolux oven showing EtUC?
If the fix is simply cleaning the oven cavity or adjusting a configuration parameter, costs may be minimal or limited to a service call fee, typically in the range of $75 to $150. If the TCAV sensor requires replacement, parts and labor combined could run between $150 and $350 depending on the technician and part availability. Control board replacement, if needed, is the most expensive scenario and can range from $300 to $600 or more.

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