Dryer displays F29 and may run but not sense dryness correctly

Safety First: Unplug the dryer before cleaning or accessing internal parts.

• Inspect inside drum: Look at the moisture sensor bars on the front bulkhead. Remove any metal objects, lint clumps, or foreign material bridging the bars.
• Clean sensor bars: Thoroughly clean the bars with rubbing alcohol and a non-abrasive cloth to remove residue that can cause false readings.
• Access wiring: Remove the front or lower panel to inspect the sensor wiring. Look for bare wires touching each other or the cabinet.
• Continuity test: Disconnect the sensor harness and check resistance between the two sensor wires. A dead short (0 ohms) with nothing touching the bars indicates a wiring or control issue.
• Repair wiring: Separate and insulate any shorted wires. Replace damaged harness sections as needed.
• Replace sensor or control: If the bars and wiring are good but F29 persists, the main control board's sensor circuit may be defective and require replacement.
• Reassemble and test: Reinstall panels, restore power, and run a sensor dry cycle to verify correct operation.