How to Fix Maytag Dishwasher Error F3E2

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Patch

Maytag

Problem: Shorted thermistor/OWI sensor – optical water indicator fault

How to Fix Dishwasher Error

Disconnect power at the circuit breaker.
Remove the lower access panel.
Locate the OWI (optical water indicator) sensor near the wash arm.
Disconnect the electrical onnector from the sensor.
Test sensor resistance with a multimeter (should not read zero ohms).
Inspect the sensor lens for mineral buildup or cloudiness.
Clean the sensor lens with vinegar solution and a soft cloth.
If the sensor is electrically shorted, remove mounting screws.
Install the new OWI sensor assembly.
Reconnect the electrical connector and run sensor calibration.

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Still Not Working?

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Browse all Maytag error codes: Maytag Error Codes

When It’s Better to Replace Than Repair

Dishwasher repairs can add up quickly when the pump, control, heater, or leak-related parts fail.
Confirm cabinet width, water line, drain routing, electrical connection, and panel style before ordering.
For repair parts, verify exact fit with the full dishwasher model number before buying; these links are general replacement-appliance shopping options.