Kenmore Dryer Error F23

⚡ Quick Answer: The Kenmore Dryer F23 error indicates a failure in the outlet thermistor, which monitors the exhaust temperature. This may result in the dryer stoppin... ✅ DIY Fixable

What Does Error F23 Mean?

The Kenmore Dryer F23 error indicates a failure in the outlet thermistor, which monitors the exhaust temperature. This may result in the dryer stopping mid-cycle, a lack of heat during drying, and laundry not drying completely. Addressing this issue typically involves checking for a faulty thermistor or loose wiring connections.

Common Symptoms:

  • Dryer stops mid‑cycle and displays error code F23 shortly after starting.
  • No or reduced heat during a drying cycle.
  • Dry laundry not drying fully.
  • Dryer may run briefly then shut off with F23 displayed.

Possible Causes

  • Faulty or shorted outlet thermistor (temperature sensor) (high)
  • Loose or damaged wiring/harness to the outlet thermistor (medium)
  • Incorrect thermistor resistance at room temperature (medium)

How to Fix Error F23

DIY Fix Basic User Checks Before Repair

  1. Unplug the dryer from power to ensure safety before any inspection.
  2. Check that the dryer is getting proper electrical supply and that the plug is fully seated.
  3. Remove lint from the lint trap and ensure vents are not blocked, which can indirectly affect temperature regulation.

Technician Only Diagnose and Replace Outlet Thermistor

  1. Disconnect power to the dryer and access the thermistor location (typically on the blower housing near the heating element).
  2. Use a multimeter to measure resistance across the thermistor; verify expected resistance (~10,000 ohms at room temperature).
  3. Inspect wiring harness and connectors for damage or poor connections; repair or replace as needed.
  4. Replace the thermistor if resistance is out of range or if the component fails continuity tests.
  5. Reassemble the dryer, restore power, and test for proper operation without error codes.

Parts needed: Outlet thermistor (temperature sensor), Multimeter for testing, Replacement wiring/connectors if needed

🛑 When to Call a Pro:
  • If multimeter resistance readings are inconclusive or you are uncomfortable measuring electrical components.
  • If wiring harness or connectors appear damaged beyond simple repair.
  • If replacing the thermistor does not clear the F23 error code, suggesting deeper control board or sensor circuit issues.

Technical Specifications

wattage 5000W
component Thermal Fuse
resistance 0 ohms (continuity)
part_number 3392519
voltage_rating 240V AC

Common Questions

What does F23 error mean on Kenmore Dryer?

F23 error indicates a failure of the outlet thermistor, leading to heating issues and incomplete drying.

Can I fix Kenmore Dryer F23 error myself?

Yes, you can check wiring, ensure proper electrical supply, and clean the lint trap before seeking professional help.

How much does it cost to fix F23 error?

The cost to replace the thermistor ranges from $20 to $80, plus additional service fees if necessary.

When should I call a technician for F23?

Call a technician if you're uncomfortable measuring electrical components or if issues persist after replacing the thermistor.

Data last verified: 2026-02-19

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