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Error code reference

Electrolux Range Error Code 1,2,3,4

Runaway Temperature

Electrolux codesElectrolux range codes

Runaway Temperature - Oven temperature has exceeded safe limits.

First step from the service manual

Check the resistance of the oven temperature probe, it should be between 1050 & 1100 ohms. If good, 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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What 1,2,3,4 means on a Electrolux range

Error codes 1, 2, 3, and 4 on an Electrolux range all indicate a Runaway Temperature condition, meaning the oven's internal temperature has climbed beyond the safe operating threshold. This is a protective fault triggered by the oven control system when it detects that the cavity temperature is rising uncontrollably or has already exceeded programmed safety limits. The oven temperature probe (also called the RTD sensor) is the primary sensing component involved. It continuously reports cavity temperature to the electronic control board via changes in electrical resistance. When the board receives readings indicating a dangerous temperature level, it throws one of these fault codes and typically shuts down the heating elements to prevent damage or fire.

The most likely cause of a runaway temperature fault is a failed or out-of-range oven temperature probe. A properly functioning probe should measure between 1050 and 1100 ohms at room temperature. Readings outside this range indicate a faulty sensor that may be sending inaccurate temperature data to the control board, causing the board to misinterpret oven conditions. If the probe tests within spec, the fault points to the electronic control board itself, which may be failing to properly regulate power to the bake or broil elements, allowing temperatures to climb unchecked regardless of what the sensor reports.

Source: manufacturer service documentation.

Common causes of 1,2,3,4

  1. 01

    Failed Oven Temperature Probe

    Part replacement

    The oven temperature probe may have drifted out of its correct resistance range or shorted internally. Test the probe with a multimeter at room temperature; a healthy probe reads between 1050 and 1100 ohms. Readings outside this range confirm the probe needs replacement.

  2. 02

    Faulty Electronic Control Board

    Part replacement

    If the temperature probe tests within the 1050 to 1100 ohm specification, the electronic control board is the next suspect. A failing board may not properly regulate power to the heating elements, allowing temperatures to escalate beyond safe limits even when sensor data is accurate.

  3. 03

    Poor Probe Connection or Wiring Issue

    Wiring / connection

    Loose, corroded, or damaged wiring between the temperature probe and the control board can cause erratic resistance readings that trigger a runaway temperature fault. Inspect the probe connector and wiring harness for signs of heat damage, corrosion, or loose pins.

  4. 04

    Stuck or Shorted Heating Element Relay

    Part replacement

    A relay on the control board that controls the bake or broil element can fail in a closed position, keeping the element energized continuously regardless of temperature. This results in genuine runaway heating and will trigger this fault code.

See the test procedure for each cause

Frequently asked questions about 1,2,3,4

What does 1,2,3,4 mean on a Electrolux range?
These codes all indicate a Runaway Temperature fault, meaning the oven detected that its internal temperature exceeded safe operating limits. The control system triggers this fault to shut down heating and prevent damage or a fire hazard. The most common cause is a faulty oven temperature probe, followed by a defective electronic control board.
Can I fix a runaway temperature error on my Electrolux range myself?
A knowledgeable DIYer can start by testing the oven temperature probe with a multimeter. If the resistance reads between 1050 and 1100 ohms at room temperature, the probe is functioning correctly and the electronic control board likely needs replacement. Probe replacement is a straightforward repair, but control board replacement requires careful handling of wiring connections and is best suited to someone comfortable with appliance electronics.
Is it safe to use my Electrolux range while this error code is showing?
No, you should not use the oven while a runaway temperature fault is active. This code indicates the oven may not be able to regulate its temperature properly, which poses a risk of overheating, food burning, or a potential fire hazard. The fault should be diagnosed and repaired before resuming use.
How much does it cost to repair a runaway temperature error on an Electrolux range?
If only the oven temperature probe needs replacement, parts typically cost between $20 and $60 depending on the model, plus labor if you hire a technician. If the electronic control board is the cause, parts can range from $150 to $350 or more, making professional labor costs a significant additional factor. Getting a diagnosis first helps avoid replacing unnecessary components.
Will resetting my Electrolux range clear the runaway temperature error code?
Resetting the range by cycling power at the breaker may temporarily clear the fault code, but it will return if the underlying cause has not been fixed. A failed temperature probe or defective control board will continue to trigger the fault during oven operation. A reset alone is not a repair and should only be used as part of the diagnostic process.

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