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Error code reference

Electrolux Range Error Code E15

ESEC self test failed, or thermal cutoff open; may indicate the User Interface Board is not receiving a…

Electrolux codesElectrolux range codes

ESEC self test failed, or thermal cutoff open; may indicate the User Interface Board is not receiving a synchronization signal from the ESEC relay board.

First step from the service manual

Check if the ESEC relay board is receiving 120VAC correctly (J1 pin 1 and 3). Then check the wiring between connector J2 on the ESEC relay board and connector P6 on the UIB. If AC power and wiring looks good and the problem is still there, replace the UIB board. If problem persists, replace the ESEC relay board.

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

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What E15 means on a Electrolux range

The E15 error code on an Electrolux range indicates a failure in the ESEC (Electronic Surface Element Control) self-test, or an open thermal cutoff within that system. The ESEC relay board is responsible for controlling the surface heating elements, and it communicates with the User Interface Board (UIB) through a synchronization signal. When the UIB does not receive this sync signal from the ESEC relay board, or when the ESEC self-test detects an internal fault, the E15 code is triggered and normal operation is halted.

The diagnostic process begins at the ESEC relay board's power supply. Connector J1, pins 1 and 3, should be receiving 120VAC. If proper AC voltage is not present at that connector, the board cannot operate and will fail to send the sync signal. If voltage is confirmed, the next step is inspecting the wiring between connector J2 on the ESEC relay board and connector P6 on the UIB. Loose, corroded, or damaged pins at either connector can interrupt the synchronization signal even when both boards are otherwise functional.

If AC power and all interconnecting wiring check out correctly and the fault persists, the UIB is the first component to replace, as it is typically more commonly at fault in sync signal failures. If replacing the UIB does not resolve the code, the ESEC relay board itself should be replaced. An open thermal cutoff on the ESEC board is also a known trigger and would require board replacement rather than a simple wiring correction.

Source: manufacturer service documentation.

Common causes of E15

  1. 01

    Wiring fault between ESEC relay board and UIB

    Wiring / connection

    A loose, corroded, or damaged connection at connector J2 on the ESEC relay board or connector P6 on the UIB can break the synchronization signal. Inspect both connectors for bent pins, corrosion, or wires that have pulled out of the housing.

  2. 02

    Missing or incorrect AC voltage at ESEC relay board

    Wiring / connection

    The ESEC relay board requires 120VAC at J1 pins 1 and 3 to function. If voltage is absent or out of spec at that connector, the board will fail its self-test. Check the supply wiring and any upstream fuses or breakers feeding that circuit.

  3. 03

    Failed User Interface Board (UIB)

    Part replacement

    If power and wiring are both confirmed good, the UIB may have failed internally and is no longer able to receive or process the sync signal from the ESEC relay board. Replacing the UIB is the recommended next step after ruling out wiring and voltage issues.

  4. 04

    Failed ESEC relay board

    Part replacement

    If replacing the UIB does not clear the fault, the ESEC relay board itself has likely failed. An open thermal cutoff inside the board is a specific failure mode that will trigger E15 and requires full board replacement.

  5. 05

    Open thermal cutoff on ESEC relay board

    Part replacement

    The ESEC relay board contains a thermal cutoff that will open if the board has been subjected to excessive heat. Once open, this component cannot be reset and the board must be replaced to restore operation.

See the test procedure for each cause

Frequently asked questions about E15

What does E15 mean on a Electrolux range?
E15 indicates that the ESEC self-test has failed or that the thermal cutoff on the ESEC relay board is open. It can also appear when the User Interface Board is not receiving a synchronization signal from the ESEC relay board. This fault affects the surface element control system and typically disables cooktop operation until resolved.
Can I fix the E15 error myself, or do I need a technician?
Some causes of E15, such as a loose wiring connector between the ESEC relay board and the UIB, can be addressed by a confident DIYer comfortable working inside the appliance with the power disconnected. However, verifying 120VAC at specific connector pins and replacing control boards requires electrical knowledge and the right tools. If you are not experienced with appliance wiring, a qualified technician is the safer choice.
Is it safe to use my Electrolux range while it shows the E15 code?
It is not recommended to continue using the cooktop while E15 is active. The error indicates a failure in the surface element control system, which means burner behavior may be unpredictable or the elements may not function at all. Discontinue use until the fault has been properly diagnosed and repaired.
Will resetting my Electrolux range clear the E15 code?
A power reset by unplugging the range or turning off the circuit breaker for a few minutes may temporarily clear the code, but it is unlikely to resolve the underlying fault. If the ESEC board has a failed thermal cutoff or the wiring connection is faulty, E15 will return once the range restores power and runs its self-test again.
How much does it cost to repair an E15 error on an Electrolux range?
Repair costs vary depending on the root cause. If only a wiring reconnection is needed, costs are minimal beyond any service call fee. If the User Interface Board requires replacement, parts alone typically run in the range of $100 to $250. Replacing the ESEC relay board carries a similar or higher parts cost, and adding professional labor can bring total repair costs to $200 to $500 or more depending on your region and the technician's rates.

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