KitchenAid Dryer Error Codes

Complete Troubleshooting & Repair Guide

Airflow System Errors
AF
Restricted Airflow Detected
  • Clean lint filter thoroughly.
  • Check exhaust vent for blockage or lint buildup.
  • Inspect vent hose for kinks or damage.
  • Ensure proper airflow outside vent outlet.
Control System Errors
F01
Main Control Failure
  • Reset power by unplugging dryer for 5–10 minutes.
  • Inspect control board for burn marks.
  • Check wiring harness connections.
  • Replace main control board if needed.
F70
Communication Error
  • Check wiring between control modules.
  • Inspect connectors for looseness or corrosion.
  • Perform full system power reset.
  • Replace control board if communication fails.
User Interface Errors
F02
Keypad Stuck
  • Clean control panel surface.
  • Check for moisture or debris under buttons.
  • Inspect ribbon cable connection.
  • Replace UI panel if issue persists.
Sensor & Measurement Errors
F22
Exhaust Thermistor Fault
  • Check thermistor resistance with multimeter.
  • Inspect wiring harness for damage.
  • Ensure proper connection to control board.
  • Replace thermistor if readings are abnormal.
F28
Moisture Sensor Issue
  • Clean moisture sensor strips inside drum.
  • Check wiring connections to sensor.
  • Test sensor response with damp cloth.
  • Replace sensor if readings fail.
Important: If the dryer continues to show errors after troubleshooting, disconnect power and contact a certified KitchenAid technician.