In this guide
TL;DR: A dryer sensor cycle may end early when a small load misses the moisture strips. Mixed weights can also leave a dry shirt beside a damp towel. Many dryers use two metal strips: damp fabric contacting both helps the controls estimate remaining moisture.
Compare load contact and automatic versus timed-dry results
Clear the lint screen, give clothes room to tumble, and separate heavy and light items. Use the intended fabric cycle and check dryer level. Fabric-softener film on the strips is one possible cause of uneven results, alongside load contact and restricted airflow. Those checks also help when an automatic cycle continues after a familiar load feels dry.
If timed dry works but sensor dry ends early, record the load and settings. That pattern alone cannot identify a failed part. If both cycle types become slow or the outdoor flap barely opens, follow the airflow checks.
Find moisture-sensor strips reachable through the door
The manual may show them near the lint-screen opening, on the front bulkhead, or toward the drum's rear. Owner care stops at visible, reachable strips. Leave cabinet panels, the bulkhead, sensor harness, and gas or electrical compartments closed for service access.
Clean the strips with the model-approved wiping method
Empty the drum and let it and nearby metal cool. Disconnect power through the accessible plug or identified circuit, as instructed. Avoid moving a gas dryer enough to strain its connection.
Roll dry lint off the screen. If it is coated, use its separate approved wash and dry it completely. Lift loose lint near the strips with a dry microfiber cloth or soft vacuum brush without striking the bars or grille. For the strips themselves, use the model-approved method; a lightly damp soft cloth is suitable only where permitted. Put moisture on the cloth rather than spraying into the drum. For a sticky mark on the drum itself, use its separate residue-cleaning method rather than extending the strip treatment.
Leave no film, fibers, or moisture around strips, fasteners, or openings before use. Keep screws installed. Abrasive pads and sandpaper can damage the surface, and a mildly abrasive melamine pad needs explicit permission. Strong solvents can harm coatings, plastic, seals, or wiring; steel-wool fragments can rust or create an electrical hazard. Loose, bent, corroded, or damaged strips need service.
Assess dryness after the strips and surrounding area are dry
When the area is dry and there are no warning signs, restore power. Use the recommended sensor cycle with a medium-sized load of similar-weight items and record the dryness setting and result. Adjust an available setting one step at a time. Automatic duration varies with the load; very small garments can still miss sound strips.
Stop for burning smells, scorched lint, repeated shutdowns, a damaged cord, gas odor, visible arcing, or an airflow warning that remains after accessible cleaning. Unusual room or dryer heat also calls for an exhaust-path check. The lint-screen housing guide covers reachable lint.
If automatic cycles remain erratic after checking strips, screen, load, settings, level, and airflow, use model-qualified service. Sensor circuits, controls, thermistors, heating, and venting may require instruments and protected access.
Moisture-sensor questions
Should an automatic cycle last as long as timed dry?
Automatic duration changes with the load. Compare dryness and the cycle pattern at the recommended load and setting, without using time alone to diagnose a sensor.
Can I clean farther in by removing the bulkhead?
Owner care stops at visible strips reachable through the door. Bulkhead, harness, panel, and gas or electrical access needs service guidance.