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Error code reference

Kenmore Range Error Code F3 E6

Warming drawer sensor open.

Kenmore codesKenmore range codes

Warming drawer sensor open.

First step from the service manual

Unplug range or disconnect power, open back panels and verify the temperature sensor is plugged in.

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

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What F3 E6 means on a Kenmore range

The F3 E6 error code on a Kenmore range indicates that the control board is detecting an open circuit in the warming drawer temperature sensor circuit. In this context, "open" means the circuit is broken and no signal is being returned to the control board from the sensor. The warming drawer uses a temperature sensor (typically a resistance-based thermistor or RTD-style probe) to monitor heat levels inside the drawer and relay that data to the control board so it can regulate the warming element accurately.

An open sensor circuit can result from a disconnected wiring harness plug, a broken or severed wire along the sensor lead, or a failed sensor element itself. Because the control board receives no readable resistance value from the sensor, it cannot confirm safe operating conditions for the warming drawer and triggers the fault code to prevent uncontrolled heating. The first diagnostic step is to remove power from the range and access the rear panels to check whether the sensor connector is fully seated at both the sensor and the control board ends.

If the wiring and connectors check out visually and are secure, the next step is to test the sensor itself for continuity and proper resistance values using a multimeter. A sensor with an open internal element will show infinite resistance (OL) rather than the expected resistance range for its operating temperature. If the wiring harness shows damage such as pinching, burning, or corrosion at the connector pins, the harness may need replacement. A fully failed sensor will require a new warming drawer temperature sensor to resolve the fault.

Source: manufacturer service documentation.

Common causes of F3 E6

  1. 01

    Disconnected sensor connector

    Wiring / connection

    The wiring harness plug at the warming drawer temperature sensor may have come loose, especially after the range has been moved or serviced. Checking that the connector is fully seated is the first and easiest step.

  2. 02

    Failed temperature sensor

    Part replacement

    The sensor element itself can fail internally, creating an open circuit. Testing with a multimeter will show infinite resistance (OL) instead of a normal finite resistance reading if the sensor has failed.

  3. 03

    Damaged wiring harness

    Part replacement

    The wire leads running from the sensor to the control board can be pinched, burned, or corroded, breaking continuity in the circuit. Inspect the full length of the harness for visible damage or corrosion at the connector pins.

  4. 04

    Loose or corroded connector pins

    Wiring / connection

    Even if the plug is physically connected, individual pins inside the connector may be corroded or backed out, preventing a reliable electrical connection. Inspect the connector pins closely and clean or reseat them as needed.

  5. 05

    Faulty control board

    Part replacement

    In rare cases, the control board itself may fail to read the sensor circuit correctly even when the sensor and wiring are intact. This is the least likely cause and should only be considered after all other components have been tested and cleared.

See the test procedure for each cause

Frequently asked questions about F3 E6

What does F3 E6 mean on a Kenmore range?
F3 E6 on a Kenmore range means the control board is detecting an open circuit in the warming drawer temperature sensor. This indicates the sensor is either disconnected, has a broken wire, or has internally failed. The control board cannot receive a valid temperature reading, so it triggers this fault code to alert you to the problem.
Can I fix the F3 E6 error myself?
Yes, in many cases this repair is within reach for a knowledgeable DIYer. Start by unplugging the range, removing the back panel, and checking that the warming drawer sensor connector is fully plugged in. If the connector is secure, you can use a multimeter to test the sensor for continuity. Replacing a temperature sensor is generally a straightforward parts swap once the faulty component is confirmed.
Is it safe to use my range while the F3 E6 code is active?
The main cooking functions of the range may still operate, but you should avoid using the warming drawer while this fault is active. Without a functioning temperature sensor, the warming drawer cannot regulate heat properly, which creates a risk of overheating. It is best to resolve the fault before relying on the warming drawer.
How much does it cost to repair a Kenmore range F3 E6 error?
If the fix is simply reseating a loose connector, there is no parts cost involved. A replacement warming drawer temperature sensor typically costs in the range of $20 to $60 for the part. If a damaged wiring harness needs replacement, parts and labor can bring the total repair cost to $75 to $200 or more depending on your location and service provider.
Will resetting the range clear the F3 E6 error code?
Unplugging the range or disconnecting power may temporarily clear the error code from the display, but the code will return if the underlying problem with the sensor circuit has not been addressed. A reset alone is not a fix. You need to diagnose and repair the open sensor circuit to permanently resolve the fault.

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