JennAir Dishwasher Code F3E2: Thermistor or wash sensor problem

What F3E2 means

On JennAir dishwashers of the current platform, such as the JDTSS246GL and JDPSG244PS, F3E2 points to the thermistor or the OWI sensor. These sensors tell the control about water temperature and how dirty the water is. Without a good reading, cycles can stop or run poorly. The first suggested step is to cycle power. It is not a clog or a leak, and the filter and hoses are rarely the cause.

Common causes of F3E2

Thermistor reading out of range
OWI sensor failed or disconnected
Loose wire at the sensor

✓ One safe check you can try

1. Open the door, clean the filter under running water and refit it firmly. 2. Cut power at the breaker for a minute, then restore it. 3. Run a short cycle with an empty tub. 4. If F3E2 comes back, call us. Do not take the sensor out or probe the sump.

! Why to stop there

Sensors sit in the sump and are wired to the control.
A bad sensor reading can only be confirmed with a meter.
Replacing the wrong sensor leaves the problem in place.
We test both sensors and tell you which has failed before quoting.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Dishwasher codes

F9E1JennAir Dishwasher Code F9E1: Long drain time F9E2JennAir Dishwasher Code F9E2: Drain motor error FAE4 or F10E4JennAir Dishwasher Code FAE4 or F10E4: Diverter valve error FAE5 or F10E5JennAir Dishwasher Code FAE5 or F10E5: Diverter leak H2OJennAir Dishwasher Code H2O: Not detecting water Sanitize Light FlashingJennAir Dishwasher Message "Sanitize Light Flashing": Sanitize Temperature Not Met F8E4JennAir Dishwasher Code F8E4: Check for water and leaks after installation F8E5JennAir Dishwasher Code F8E5: Fill valve stuck open

F3E2F3E2 questions

What is an OWI sensor?

It is the sensor that measures how clear the wash water is. The control uses it to decide how long to wash and rinse. If it fails, the machine cannot judge a load.

Will the dishwasher keep working?

The code can stop a cycle. If it does run, results may be inconsistent. We recommend a visit if F3E2 returns after a power cycle.

Why does a clean filter matter?

Debris near the sensor can confuse its reading, so a clean filter is the one safe step you can take. If the code stays, the sensor itself needs a test.