GE Dryer Error Code Moisture Sensor

The moisture sensor fault on a GE dryer indicates that the control board has detected a short circuit condition across the moisture sensor rods. These sensor rods are typically located inside the drum, mounted on the front bulkhead or lint screen housing, and work by measuring the electrical resistance of clothes as they tumble. Wet fabrics conduct electricity between the two sensor bars, producing a measurable signal. When the control sees a persistent low-resistance or zero-resistance reading, it interprets this as a short rather than a legitimate wet-clothing signal, triggering the fault condition.

Once the fault is active, the dryer disables automatic moisture-sensing functionality entirely and defaults to timed drying for all cycles. This means the dryer will no longer terminate a cycle early based on dryness level. Clothes may be over-dried or the user must manually set dry times. The root cause is most often a wiring fault between the sensor rods and the inverter board, including chafed insulation, pinched wires, or connectors that have shorted together. Lint and fabric softener residue buildup on the sensor rods themselves can also create a conductive bridge between the rods, mimicking a short.

Diagnostic work should begin at the wiring harness connecting the moisture sensor assembly to the inverter board. Inspect connectors for corrosion, bent pins, or melted insulation that could be pulling the two signal wires together. After confirming clean wiring, the sensor rods themselves should be inspected and cleaned. If the rods appear physically damaged or corroded beyond cleaning, replacement of the sensor assembly is the appropriate next step.