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Error code reference

Electrolux Range Error Code LEDs 4,5,7

Inter Processor Communications Failure (Motor Door Latch)

Electrolux codesElectrolux range codes

Inter Processor Communications Failure (Motor Door Latch) - Communication between processors related to the motor door latch has failed.

First step from the service manual

Replace electronic control board.

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

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  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
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What LEDs 4,5,7 means on a Electrolux range

The LEDs 4, 5, 7 error code on an Electrolux range signals an Inter Processor Communications Failure specifically related to the motor door latch system. This error occurs when the main electronic control board and a secondary processor lose the ability to communicate with each other regarding the status and operation of the motorized door latch. The motor door latch is a critical safety component in self-cleaning ranges, responsible for securing the oven door during high-temperature cleaning cycles. When the two processors cannot exchange data about latch position or motor operation, the control board flags this communication breakdown as a fault condition.

The failure is rooted in the control board's inability to send or receive valid signals through the inter-processor communication circuit. This can stem from a corrupted or failed processor on the main board, damaged wiring or connectors in the latch circuit, or a failed motor latch assembly that is sending back unexpected or no signal. Because both processors reside on or connect through the electronic control board, the board itself is the primary suspect in this fault.

Since the diagnostic path points directly to replacing the electronic control board as the first step, the fault is most likely an internal board failure rather than an external wiring or mechanical issue. However, technicians should also inspect the wiring harness and connectors leading to the motor door latch assembly before condemning the board, as a damaged connector or broken wire can disrupt the communication signal and produce the same error indication.

Source: manufacturer service documentation.

Common causes of LEDs 4,5,7

  1. 01

    Failed Electronic Control Board

    Part replacement

    The main electronic control board contains the processors responsible for inter-processor communication. An internal failure of one of these processors or the communication circuit on the board will directly cause this error, making the board the most likely component to replace.

  2. 02

    Damaged Wiring Harness or Connectors

    Wiring / connection

    A broken wire, corroded terminal, or loose connector in the harness between the control board and the motor door latch assembly can interrupt the communication signal. Inspect all connectors and wiring in this circuit for visible damage, corrosion, or looseness.

  3. 03

    Failed Motor Door Latch Assembly

    Part replacement

    If the motor door latch assembly itself has failed, it may send no signal or an invalid signal back to the control board, triggering the communication fault. Testing or replacing the latch assembly can rule out this component as the source.

  4. 04

    Intermittent Power Supply Issue

    Wiring / connection

    Unstable or insufficient voltage reaching the control board can disrupt processor operation and cause communication faults. Verifying the power supply voltage at the board can help rule out this cause.

See the test procedure for each cause

Frequently asked questions about LEDs 4,5,7

What does LEDs 4,5,7 mean on a Electrolux range?
LEDs 4, 5, 7 indicate an Inter Processor Communications Failure related to the motor door latch. The two internal processors on the range are unable to communicate with each other about the status of the motorized door lock used during self-cleaning cycles. This is a control board level fault that typically requires professional diagnosis and board replacement.
Can I fix the LEDs 4,5,7 error on my Electrolux range myself?
The primary diagnostic step for this error is replacing the electronic control board, which is a moderately complex repair involving handling of electrical components and connector harnesses. A knowledgeable DIYer can inspect the wiring and connectors to the door latch assembly before replacing parts, but board replacement itself requires comfort with disassembly and working around line voltage. If you are unsure, hiring a qualified appliance technician is the safer option.
Will resetting the Electrolux range clear the LEDs 4,5,7 error?
Resetting the range by disconnecting power for several minutes may temporarily clear the error display, but if the underlying communication failure persists due to a faulty control board or damaged wiring, the code will return. A reset is not a repair and should only be used as an initial diagnostic step to see whether the fault is intermittent or permanent.
Is it safe to use my Electrolux range while LEDs 4,5,7 is showing?
Because this error involves the motor door latch system, which is a safety-critical component for self-cleaning cycles, you should avoid running the self-clean function until the fault is resolved. Basic cooking functions may still operate, but using the range with a known latch communication fault carries risk, especially if the door cannot be confirmed to lock or unlock properly. Consulting a technician before continued use is advisable.
How much does it cost to repair the LEDs 4,5,7 error on an Electrolux range?
Repair costs will vary depending on whether the issue is a wiring problem or a full control board replacement. A replacement electronic control board for an Electrolux range typically falls in the range of $150 to $400 or more for the part alone, with labor costs adding $100 to $200 or more depending on your location and the service provider. Getting a diagnostic estimate from a certified technician before authorizing repairs is recommended.

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