Dryer displays F28 and may not start or may shut down shortly after starting.

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

• Locate the moisture sensors: Inside the drum, look for two parallel metal bars (usually on the front bulkhead). These are the moisture sensor strips.
• Clean the sensor bars: Using a soft cloth and rubbing alcohol, thoroughly clean the metal bars to remove any film from dryer sheets or fabric softener. Let them dry completely.
• Check wiring connections: Access the front bulkhead from behind the front panel and verify that the wires to the moisture sensor bars are securely connected.
• Inspect for damage: Look for broken or cracked sensor bars or cut wires. Replace damaged components.
• Test continuity: With the dryer unplugged, disconnect the sensor harness and check continuity across the two bars while bridging them with a damp cloth. The meter should show continuity; if not, the sensor assembly may be open and require replacement.