KitchenAid · Dryer Moderate

F28 — Moisture Sensor Fault

The moisture sensor strips inside the drum are reading out of expected range. Automatic cycles cannot detect dryness accurately.

Keep using it?
Yes, with caution
DIY difficulty
Moderate
Verified against
kitchenaid.com ↗

How to fix it

  1. Open the door and locate the two metal strips on the front bulkhead.
  2. Scrub them with a non-abrasive pad and a little rubbing alcohol or vinegar.
  3. Run a Timed Dry cycle to test — if F28 returns only on auto, sensor or wiring is the next suspect.
  4. Unplug, pull the front panel, and inspect the harness to the sensor.
  5. Replace the sensor bar/harness assembly if damaged.

Why it happens

Typical signs: F28 code · Auto cycles end too soon · Clothes still wet at end of cycle

  • Fabric softener buildup on sensor bars Insulating film prevents contact
  • Broken wire to moisture sensor Harness pinched between drum and bulkhead
  • Failed sensor strips Worn through or corroded
  • ACU fault Sensor input circuit damaged

Parts you may need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

  • Dryer moisture sensor harness Common replacement
    Amazon →

More KitchenAid dryer codes

AF AF — Airflow Restriction E1 E1 — Thermistor Open Circuit E2 E2 — Thermistor Shorted F01 F01 — Main Control Board Failure F22 F22 — Exhaust Thermistor Fault F23 F23 — Exhaust Thermistor Shorted

All KitchenAid codes → All dryer codes →

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: kitchenaid.com.