Viking Dishwasher Error Code Flash all LEDs but start

This error means the moisture sensor in the base pan of the dishwasher has detected water, signaling a potential leak or overflow condition. The control board shuts the unit down and flashes all LEDs except the start button to alert you to the problem. It is a protective response designed to stop further water damage. You need to locate and fix the source of any water before the unit will operate normally again.

No, you should not attempt to run the dishwasher while this error is active. The error indicates that water has been detected where it should not be, which could mean an active leak is occurring beneath the unit. Continuing to operate it could cause water damage to your flooring, cabinetry, or subfloor, and could also create an electrical hazard if water reaches wiring or components in the base.

Repair costs vary widely depending on what is causing the leak. Replacing a door gasket typically falls in the range of $50 to $150 for parts and labor. A water inlet valve or internal hose replacement may run $100 to $300 depending on parts availability and labor rates in your area. If the moisture sensor itself needs replacement, costs are generally on the lower end of that range, though a service call fee will apply in most situations.

Start by pulling the dishwasher forward enough to inspect the base pan for standing water. If water is present, identify the source of the leak, which could be the door gasket, a hose, the inlet valve, or another internal component, and repair or replace the faulty part. Once the leak is fixed and the pan is dry, the dishwasher should be able to resume normal operation. If the pan is dry and the error continues, the moisture sensor or its wiring harness should be tested and potentially replaced.

A simple reset will not permanently clear this error if the underlying condition still exists. The moisture sensor continuously monitors the base pan, so if water remains present or the sensor is still reading a fault-level signal, the error will return immediately or at the next cycle start. The root cause, whether a leak or a failed sensor, must be resolved first.