Dryer stops or will not start, F10 displayed, often related to moisture sensing

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

• Clean sensor bars: Locate the two metal strips (moisture sensors) inside the drum, usually near the lint filter opening. Clean them thoroughly with a soft cloth and a little white vinegar or mild detergent to remove fabric softener residue.
• Inspect for damage: Check that the sensor bars are not bent, loose, or covered by plastic film. Ensure mounting screws are tight.
• Check wiring: From the rear or front access, trace the wires from the sensor bars to the control board. Look for broken wires or loose connectors and reseat them.
• Test with timed cycle: Try running a timed (non‑sensor) drying program. If this works but auto cycles fail, the moisture sensing circuit is likely at fault and may require sensor or board replacement.