Cooktop Medium Severity
F3 Appliance Error Code

Jenn-Air Cooktop F3 Error: Sensor Open Circuit

What Does Jenn-Air Cooktop Error Code F3 Mean? Error code F3 on a Jenn-Air cooktop means a temperature sensor has an open circuit. Each cooking zone has a sensor under the glass surface that monitors temperature. When the sensor circuit breaks, the cooktop disables that zone as a safety precaution. Common Causes Sensors under the […]

By Michael Turner Lead Appliance Repair Specialist & Technical Writer

Quick Assessment

Answer to continue safely

Is it safe to keep using?

Maybe. Unaffected zones are safe to use. The zone with the sensor fault should not be used until repaired.

Can I reset the code?

Yes. A power cycle may temporarily clear the error if the connection is intermittent.

When to stop immediately?

Stop if you notice: Multiple zones show the same error, Zone heats but has no temperature limit.

Symptoms You May Notice

One cooking zone will not activate

The affected zone does not heat when selected, while other zones work normally.

Error appears immediately when zone is turned on

The F3 code displays as soon as the zone knob or touch control is activated.

Hot surface light does not turn on for that zone

The hot surface indicator for the affected zone never illuminates.

Possible Causes

1

Failed zone temperature sensor

The sensor under the glass surface for that zone has broken or failed open.

Requires Professional
2

Sensor wiring disconnected

The wiring between the sensor and the control board has come loose.

Requires Professional

Safe Checks You Can Do

These checks are safe for homeowners. No disassembly required. Do not remove panels or access internal components.
  1. 1

    Identify the affected zone

    Try each zone individually to determine which zone triggers the F3 error.

    Other zones should continue to work normally.

  2. 2

    Power cycle

    Turn off the breaker for 5 minutes and test the affected zone again.

    An intermittent connection may temporarily restore the sensor.

When to Call a Professional

Contact a qualified technician if:

  • Sensor shows open circuit on meter
  • Wiring harness has visible damage
  • Connector pins are corroded or bent

Need Professional Help?

Find qualified technicians in your area for proper diagnostics and repair.

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