What Moisture Sensor Means
This problem means the moisture sensor's output matches what it would read if water were sitting in the base pan; the leak-protection system has flagged standing water where none should be — this is confirmed directly in Viking's own dishwasher service manual.
Common Causes of Moisture Sensor
- A genuine leak from a hose, seal, or pump
- Moisture sensor is stuck or failing (false trigger)
- Excess condensation has collected in the base pan over time
🔧 One Safe Check You Can Try
Shut off the water supply to the dishwasher at the valve and look at the floor and cabinet base for visible water. Hold off on running another cycle until the source has been confirmed.
⚠ Why You Shouldn't Go Further Than That
- This problem exists precisely to stop an active leak in its tracks — running another cycle just to "test" it risks a flooded kitchen floor before the cause is even known.
- An undiagnosed, unstopped leak can travel under the cabinetry for days before it's ever visible, causing far more damage than the original problem ever would.
- The base pan is positioned right beneath live electrical connections, so checking for standing water without cutting power at the breaker first is a shock risk.
- Keep running cycles while chasing this yourself and each one sends more water past a problem the machine has already detected, soaking the subfloor and the cabinet sides before anything shows at the kickplate.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.