Whirlpool dishwasher F3E2 error code
F3E2 does not mean the same thing on every Whirlpool dishwasher. Our data shows 2 documented meanings, depending on which engineering platform the model is built on. Look up your model number to see the one that applies.
| Meaning | Appliance | Whirlpool models |
|---|---|---|
| Thermistor/OWI: shorted | Dishwasher | 75 |
| OWI: failed calibration | Dishwasher | 25 |
F3E2: Thermistor/OWI: shorted
- Brand
- Whirlpool
- Appliance
- Dishwasher
- Code
- F3E2
- Documented meaning
- Thermistor/OWI: shorted
- Applies to
- 75 Whirlpool models on 3 platforms
- Can you keep using it?
- With caution
F3E2 means the water temperature reading is so high that the control treats the sensor circuit as shorted; very hot incoming water can also cause it.
What the dishwasher is detecting
The thermistor inside the OWI sensor changes resistance with temperature. A reading that corresponds to water hotter than the dishwasher should ever see sets this code, whether the water really is that hot or the circuit is shorted.
Causes listed for this condition
In the order the service documentation checks them. Documented causes come from the manufacturer's service documentation for these platforms; possible causes are based on how the system works; unconfirmed marks common assumptions that the documentation does not support.
- Documented Incoming water hotter than about 167°F (75°C), for example from a water heater set far too high.
- Documented A shorted wire or connector in the temperature-sensing circuit.
- Documented A shorted or failed temperature sensor.
- Documented A failed sensor input on the main control.
Safe checks you can make
- Check how hot the water at the kitchen faucet gets. If it is scalding, the water heater may be set far too high; around 120°F at the faucet is the usual recommendation for dishwashers.
- Switch off the dishwasher's circuit breaker (or unplug it, if it plugs in under the sink) for one minute, restore power and run a short cycle to see whether the code returns.
Further diagnosis requires opening the appliance. Beyond the owner checks, diagnosis involves removing panels, testing components and checking wiring. We describe what a technician investigates, not how to do it yourself.
What a technician checks
- Checks incoming water temperature.
- Checks the sensor reading in the service diagnostic cycle.
- Checks the sensor and its circuit for a short with power off.
Typical repairs and cost
Depending on what diagnosis finds, this code can lead to one of these repairs:
| Repair | Typical range | Labor |
|---|---|---|
| Dishwasher thermistor or turbidity sensor replacement | $180–$330 | Light |
| Dishwasher main control board replacement | $260–$590 | Moderate |
Typical total ranges for the Las Vegas area, parts and labor included. The final cost depends on diagnosis, the exact model, parts availability and whether other damage is found.
Can you keep using it?
Use with caution. If the cause is very hot supply water, lowering the water heater setting fixes it and also reduces scald risk. Otherwise schedule service.
Whirlpool models documented with this code
- WDF331PAMB
- WDF331PAMS
- WDF331PAMW
- WDF332PAMB
- WDF332PAMS
- WDF332PAMW
- WDF340PAMB
- WDF340PAMM
- WDF340PAMT
- WDF340PAMW
- WDF341PAPB
- WDF341PAPM
- WDF341PAPT
- WDF341PAPW
- WDF560SAFT
- WDF590SAJB
And 59 more. Use the model lookup to check yours.
F3E2: OWI: failed calibration
- Brand
- Whirlpool
- Appliance
- Dishwasher
- Code
- F3E2
- Documented meaning
- OWI: failed calibration
- Applies to
- 25 Whirlpool models on 3 platforms
- Can you keep using it?
- Generally yes
F3E2 means the optical soil sensor (OWI) could not calibrate itself against clean water, so the control cannot judge how dirty the wash water is.
What the dishwasher is detecting
After service diagnostics or on a calibration cycle, the control expects the OWI sensor to see clear water. If the light reading through the water is outside the expected range, calibration fails and this code is stored.
Causes listed for this condition
In the order the service documentation checks them. Documented causes come from the manufacturer's service documentation for these platforms; possible causes are based on how the system works; unconfirmed marks common assumptions that the documentation does not support.
- Documented A failed OWI sensor.
- Documented The OWI lens obstructed by hard-water buildup or food soil.
- Documented A bad connection in the soil-sensing circuit.
- Possible General service knowledge, not from the service documentation: very hard water, as in Las Vegas, builds film on the sensor lens faster.
Safe checks you can make
- If your model has a removable filter in the bottom of the tub (the owner's manual shows how to twist it out), take it out, rinse it under the faucet and lock it fully back in place.
- After a cycle, look for dirty water sitting in the bottom of the tub. A small amount of clear water around the filter is normal; murky water that returns after draining is worth reporting.
- Run an empty cycle with an automatic-dishwasher cleaner to remove hard-water film from inside the tub.
Further diagnosis requires opening the appliance. Beyond the owner checks, diagnosis involves removing panels, testing components and checking wiring. We describe what a technician investigates, not how to do it yourself.
What a technician checks
- Checks and cleans the OWI lens.
- Checks the soil-sensing circuit with power off.
- Runs diagnostics after any sensor work so the next wash recalibrates.
Typical repairs and cost
Depending on what diagnosis finds, this code can lead to one of these repairs:
| Repair | Typical range | Labor |
|---|---|---|
| Dishwasher thermistor or turbidity sensor replacement | $180–$330 | Light |
| Dishwasher drain pump replacement | $180–$400 | Moderate |
Typical total ranges for the Las Vegas area, parts and labor included. The final cost depends on diagnosis, the exact model, parts availability and whether other damage is found.
Can you keep using it?
Generally safe to keep using. The dishwasher keeps working; cycle choices that depend on soil sensing may run longer than needed until it is fixed.
Whirlpool models documented with this code
And 16 more. Use the model lookup to check yours.
Related problems and codes
Other codes documented on the same Whirlpool platforms:
Repair or replace?
A fault code alone rarely justifies replacing a dishwasher. Most F3E2 repairs involve a single component once diagnosed. Replacement becomes worth considering when the unit is near the end of its typical 9–12-year life and the diagnosed repair is a major one. See the repair-or-replace guide.
Need F3E2 diagnosed in the Las Vegas area?
We repair Whirlpool, Maytag, KitchenAid, JennAir, Amana and other Whirlpool-family appliances in Las Vegas, Henderson, Summerlin and Boulder City. A model number helps but is never required to book.