What F-28 / F-29 / F:28 / F:29 (110 / Whirlpool-built Oasis and Elite) Means
These codes on the Whirlpool-built Oasis and Elite dryers report the moisture sensor circuit as failed. That sensor is the pair of metal strips inside the drum that judge how wet the laundry still is, and the documented check starts with their wiring.
Common Causes of F-28 / F-29 / F:28 / F:29 (110 / Whirlpool-built Oasis and Elite)
- Softener residue insulating the sensor bars
- A metal item lodged across the two strips
- Broken wiring between the sensor and the main control board
🔧 One Safe Check You Can Try
Look into the drum for the two metal bars and wipe them with a damp cloth to remove the waxy film fabric softener leaves behind; check nothing metallic is bridging them while you are there.
⚠ Why You Shouldn't Go Further Than That
- Scouring the bars with an abrasive damages the surface and makes future coating worse.
- The sensor wiring runs behind the drum front, which means working around a heat source with the machine isolated first.
- Gas models have the gas shut off at the appliance valve before any panel is removed.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.