How to Fix Whirlpool Dryer Error F28

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⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.

Error Code: F28 Difficulty: Moderate

Problem: Moisture Sensor Open

⚖️ Repair Decision

✅ WORTH FIXING

Parts under $100

How to Fix F28 Error

Unplug the dryer.
First, locate the two metal moisture sensor strips inside the drum, usually below the door opening on the lint filter housing.
Clean the surface of these strips thoroughly with a cotton ball and rubbing alcohol to remove any fabric softener residue.
If cleaning does not work, inspect the wires running from the sensor bars to the main harness. If the wires are intact, the sensor/harness assembly needs to be replaced.

OEM Part #: WP3387223 (Moisture Sensor/Harness)

Estimated Market Price: $20-$45

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

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Estimated repair cost (parts, or parts + labor) Most DIY parts are $50–$250. If you have a quote, use the total.

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