Gram Auto-Dry Control / Moisture Sensing Failure

Dryer runs but timer does not count down; cycle seems to run indefinitely; no error code.

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Possible Causes

Dirty moisture sensor bars, Faulty moisture sensor wiring, Defective main control PCB auto-dry circuit

How to Fix / Troubleshooting

Safety first: Unplug the dryer before accessing internal wiring.

  • Clean sensor bars: Thoroughly clean the moisture sensor bars inside the drum with vinegar or mild detergent to remove residues.
  • Check wiring: Inspect the sensor wiring harness and connectors for damage or loose connections. Repair as needed.
  • Use timed program: As a temporary workaround, use a timed drying program until the auto-dry function is repaired.
  • PCB replacement: If cleaning and wiring checks do not restore normal countdown, the main control PCB may need replacement.
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Repair Difficulty

Easy 2/5

Required Part

Moisture Sensor Bars
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