Whirlpool Dishwasher 3-2 — What It Means & How to Fix It
Also shown as F3 E2, F3E2 on some models.
F3E2 indicates a problem with the thermistor or OWI sensor — the part that reads water temperature and clarity — so reset power for 30 seconds and have it serviced if the code persists.
What this code means
Whirlpool names the thermistor or OWI sensor as the potential cause of F3E2. That sensor sits in the wash water and tells the control how warm and how dirty the water is; when its reading is missing or implausible the control raises this code. Whirlpool's only owner step is a power cycle.
Applies to Whirlpool dishwashers that report F#E# codes. Sensor arrangements vary by model, so use your model number to pull the right manual if you need part details.
Most likely causes
| Cause | How likely | DIY-fixable? |
|---|---|---|
| Momentary bad sensor reading cleared by a reset | Common | Yes — power reset |
| Failed thermistor / OWI sensor | Common | No — technician job |
| Wiring fault between the sensor and control | Less common | No — technician job |
What you can try yourself
- End the current cycle.
- Take power away for 30 seconds by unplugging the dishwasher or switching off its breaker.
- Power it back up and run a normal cycle.
- If the cycle completes and dishes come out clean and warm, no further action is needed.
- A repeat of F3E2 means the sensor circuit needs testing — schedule service.
When to call a technician
- F3E2 shows again on the next cycle.
- Cycles run far longer than usual or stop partway.
- Dishes come out cold and wet along with the code.
Typical professional repair cost: Sensor replacement by a technician typically lands between $120 and $250 including the part.
Frequently asked questions
What is the OWI sensor in a Whirlpool dishwasher?
It is the sensor in the wash water that the control uses to judge temperature and how soiled the water is. Whirlpool lists it, together with the thermistor, as the potential cause of F3E2.
Can I fix F3E2 myself?
You can try the power reset Whirlpool recommends — 30 seconds disconnected. Beyond that, Whirlpool directs owners to schedule service.
Will the dishwasher still clean with an F3E2 code?
It may not run correctly, because the control relies on that sensor to manage the cycle. If the code will not clear, have it repaired rather than working around it.
Sources checked
Error meanings can vary by model. This guide was checked against the documentation above; use the manual for the model number on your own appliance when it differs.
Related Whirlpool codes
- Whirlpool Dishwasher 1-1 The control board detected one of its own relays stuck on — a long power-off clears the false alarms, while a genuinely welded relay means board-level repair.
- Whirlpool Dishwasher 6-4 The overfill float switch — the machine's anti-flood backstop — is reading open, usually because the float is stuck or obstructed, occasionally because the inlet valve is dribbling water in when it should be shut.
- Whirlpool Dishwasher 1-2 F1E2 means the dishwasher's main control has logged a communication error — disconnect power for 30 seconds to reset it, and book service if the code returns.
- Whirlpool Dishwasher 2-1 F2E1 points to a stuck key or a console error on the control panel; cycling power for 30 seconds is the fix to try, and a repeat means the console needs professional attention.
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