Kenmore Dryer F28 error code
The moisture sensor strip circuit is open. The dryer cannot sense how damp the clothes are on automatic cycles.
Also shown as: F28, F 28, F-28
Last updated: October 6, 2026
What causes the F28 error?
- Open or failed moisture sensor strips inside the drum
- Loose or corroded sensor wiring
- Fabric softener or detergent film coating the sensor strips
- Failed main control board
How to fix Kenmore F28 — step by step
Work through these in order, from simplest and safest first. Stop as soon as the code clears.
- Clean the sensor strips
Find the two metal moisture sensor strips inside the drum, usually on the back wall or near the lint filter housing. Wipe them with a cloth dampened with rubbing alcohol to remove invisible softener film. Let them dry, then run an automatic cycle. - Power-reset the dryer
Unplug the dryer for 5 minutes, plug it back in, and test. A glitch sometimes clears with a full reset. - Use a timed cycle as a workaround
While waiting for repair, you can dry on a timed cycle, which does not need the moisture sensor. Check clothes manually so you do not overdry them.
When to call a technician
- F28 returns after cleaning the sensor strips
- Sensor wiring is loose, corroded, or broken
- The sensor strips are physically damaged
- The main control board needs replacement
Frequently asked questions
What does F28 mean on a Kenmore dryer?
It means the moisture sensor strip circuit is open. The dryer cannot measure dampness, so automatic cycles cannot work properly.
Why would the sensor just stop working?
Fabric softener sheets and liquid softener leave a thin invisible film on the sensor strips. That film is the most common cause and wipes off with rubbing alcohol.
Is dryer F28 the same as washer F28?
No. Dryer F28 is a moisture sensor fault. Washer F28 is a communication failure between control boards.
Sources
Every meaning and fix above was checked against official manufacturer documentation:
FixCode provides general troubleshooting information only — not professional repair advice. If you are unsure about any step, stop and call a qualified technician. Repairs done incorrectly can be dangerous and may void your warranty.