What F3E1 means on your Kenmore dishwasher (kenmore dishwasher f3e1 error)
A kenmore dishwasher f3e1 error is reported as a thermistor (water-temperature sensor) or OWI (optical water indicator/turbidity sensor) problem on Whirlpool-built Kenmore dishwashers (106/110/198/664/665/850-prefix). This specific dishwasher-platform meaning was not confirmed on a single Whirlpool primary page in our research, so it is presented honestly as a typical/pattern code from consistent Whirlpool-platform repair references rather than an independently verified listing.

Symptoms
The signs below help confirm you are dealing with this condition rather than a different problem on your Kenmore dishwasher. You may notice one of them or several together, and they can appear gradually or suddenly after a power event, a wash or cook cycle, a spill, or recent installation or service.
- The display shows F3E1
- Wash water temperature seems inconsistent
- Dishes may come out less clean than expected
- The cycle may stall or run longer than normal
Common causes
Several different problems can produce these symptoms. Working through the most likely causes in order separates a quick owner-level check from a problem that needs trained service and the correct Kenmore parts.
- Failed thermistor — the water-temperature sensor is reading incorrectly
- Failed OWI/turbidity sensor — the sensor that checks water clarity is misreading
- Damaged wiring — between the control board and either sensor
Troubleshooting steps you can try
Work through these checks in order before calling for service. Stop wherever you are unsure, or where mains voltage, gas, a hot oven cavity, water, or a sealed component is involved, and hand the rest to a qualified technician.
- Power the dishwasher off at the breaker for a few minutes to force a reset.
- Restart and attempt a normal cycle.
- Avoid repeatedly cycling power in quick succession.
- If F3E1 returns, book service rather than continuing to reset it.
Parts a technician may replace
Depending on what the diagnosis shows, a technician may inspect, test, or replace the thermistor, owi (optical water indicator/turbidity sensor), and sensor wiring. The correct part for your Kenmore dishwasher is matched from the model and serial number, and genuine OEM components are fitted through trusted parts suppliers rather than generic substitutes so performance, safety, and the appliance long working life are all protected. Confirming the failed part before ordering avoids replacing more than the problem actually requires.
When to call a technician
F3E1 needs an experienced technician to check the wiring and test the thermistor/OWI sensor on this Whirlpool-built Kenmore dishwasher. This condition is rated Medium severity, so there is no emergency — but if the same F3E1 keeps returning after the checks above, a technician should confirm the cause before any part is replaced. As an independent repair service we are not affiliated with the manufacturer, and we work only with experienced, skilled technicians and genuine OEM parts from trusted parts suppliers, with our workmanship backed by a 30-day labor warranty. When you book, have your Kenmore dishwasher model and serial number ready so the right part for your exact build can be matched before the visit and the F3E1 condition resolved in as few trips as possible.
Related help and Kenmore resources
If the F3E1 condition keeps returning after these checks, book Kenmore dishwasher repair, browse our dishwasher error-code guides and step-by-step repair guides, or schedule service in your area on our locations page. See also the related F9E1 long-drain problem. For full manufacturer specifications and model lookup, visit kenmore.com.