Error code reference

Maytag Dishwasher Error Code 3-3

OWI (Optical Water Indicator) failure / failed calibration.

First step from the service manual

1. Check all connections in soil sensing circuit. 2. Check OWI lens surface, clean if needed. 3. Run Service Diagnostics to check OWI operation. OWI should see low soil with clear water. Replace OWI or control if needed. Run Diagnostics after installing new OWI to force calibration on next regular wash cycle.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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Step-by-step tests with expected resistance, voltage, and continuity values
Wiring diagram references and connector pinouts from the OEM service manual
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3-3 on my Maytag Dishwasher

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OWI (Optical Water Indicator) failure / failed

From Tech Sheet W15356650, p.22:

1.1. Check all connections in soil sensing circuit. 2. Check OWI lens surface, clean if needed. 3. Run Service Diagnostics to check OWI operation. OWI should see low soil with clear water. Replace OWI or control if needed. Run Diagnostics after installing new OWI to force calibration on next regular wash cycle.

2.Measure control board supply voltage at the test points. Expected: 12 VDC and 5 VDC; a drop below 4.75 VDC on the logic rail points to a failed onboard regulator.

3.Inspect all connectors on the main control for corrosion, thermal stress, or backed-out pins. Reseat each connector with the power disconnected.

Part WPW10804018

Electronic control board

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First step from the service manual

Get the full diagnostic procedure for 3-3.

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