Dryer runs but timer does not advance; cycle runs indefinitely on auto-dry

Safety first: Unplug the dryer before accessing sensor wiring or control boards.

• 1. Clean moisture sensors: Inside the drum, clean the metal sensor bars with rubbing alcohol to remove residue.
• 2. Test timed dry: Run a timed dry cycle. If the timer advances normally, the issue is likely with moisture sensing rather than the timer itself.
• 3. Inspect sensor wiring: Access the back of the sensor bars and check the harness for damage or loose connections. Repair as needed.
• 4. Control board: If sensors and wiring are good but auto-dry still runs indefinitely, the main control may be faulty and require replacement.