Dryer shows F28 and may not start or may stop with sensor-dry programs failing.

Safety first: Unplug the dryer before working inside the drum or control area.

• Clean sensor bars thoroughly: Use a non-abrasive cleaner and cloth to remove any residue from the metal bars inside the drum.
• Inspect wiring:
  • Access the back of the sensor bars from the front panel area.
  • Check for pinched, broken, or shorted wires.
• Check for shorts: Ensure no metal objects or screws are touching both sensor contacts at once.
• Test in timed mode: If timed drying works but sensor-dry fails with F28, the moisture sensing circuit is likely at fault and may require sensor or PCB replacement.

Note: Avoid using steel wool or harsh abrasives on sensor bars; they can damage the surface.