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Error code reference

Viking Dishwasher Error Code NORMAL WASH + LED1

Moisture Sensor Activated

Viking codesViking dishwasher codes

Moisture Sensor Activated - water detected in the base pan.

First step from the service manual

Check for water in the base pan and check for water leaks.

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

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What NORMAL WASH + LED1 means on a Viking dishwasher

The NORMAL WASH + LED1 error on a Viking dishwasher indicates that the moisture sensor located in the base pan has been activated. This sensor is designed to detect the presence of water in the drip tray or base pan at the bottom of the unit, which sits beneath the wash tub and internal components. When water accumulates in this area, the sensor triggers the error to alert the user and prevent further operation that could lead to floor damage, electrical hazards, or component failures.

The base pan moisture sensor works as a float or conductivity-based detection system. When water reaches the sensor, the dishwasher halts its cycle and displays this error combination. The water in the base pan almost always indicates an active or past leak from somewhere within the dishwasher's internal plumbing, door gasket, or pump assembly. The leak source must be identified and repaired before the unit will function normally again.

The first step in diagnosing this error is to physically inspect the base pan for standing water and trace the leak back to its origin. Common leak points include the door gasket, water inlet valve, pump seals, hose connections, and the wash arm assembly. Simply removing the water from the base pan without addressing the underlying leak source will result in the error returning once the dishwasher is run again.

Source: manufacturer service documentation.

Common causes of NORMAL WASH + LED1

  1. 01

    Leaking Door Gasket

    Part replacement

    A worn, cracked, or improperly seated door gasket allows water to escape the wash tub and drip into the base pan during operation. Inspect the gasket around the entire door perimeter for visible damage, stiffness, or gaps.

  2. 02

    Faulty Water Inlet Valve

    Part replacement

    A water inlet valve that does not fully close or has a cracked body can drip water continuously into the dishwasher, eventually overflowing into the base pan. Check the valve and surrounding area for signs of moisture or mineral deposits.

  3. 03

    Leaking Pump or Pump Seals

    Part replacement

    The wash pump or drain pump seals can degrade over time, allowing water to seep out and collect in the base pan. Look for water trails or residue near the pump housing at the bottom of the dishwasher.

  4. 04

    Loose or Damaged Internal Hose Connections

    Wiring / connection

    Hose connections between the pump, sump, and spray arm supply lines can loosen or crack, creating a slow leak that drains into the base pan. Inspect all clamps and hose fittings for tightness and signs of wear.

  5. 05

    Overfilling Due to a Faulty Float Switch or Water Inlet Valve

    Part replacement

    If the dishwasher overfills, water can overflow the tub and reach the base pan. This can be caused by a stuck-open inlet valve or a malfunctioning float switch that fails to shut off the water supply at the correct level.

See the test procedure for each cause

Frequently asked questions about NORMAL WASH + LED1

What does NORMAL WASH + LED1 mean on a Viking dishwasher?
This error means the moisture sensor in the base pan at the bottom of the dishwasher has detected water. It is a leak detection alert that causes the dishwasher to stop operating. The error points to an active or recent internal water leak that needs to be located and repaired before the unit can be safely used again.
How do I fix the NORMAL WASH + LED1 error on my Viking dishwasher?
Start by removing the lower kick plate and inspecting the base pan for standing water. Dry out any water present, then run a short cycle while watching for the source of the leak. Common leak points include the door gasket, water inlet valve, pump seals, and internal hose connections. Once the leak source is identified and repaired, the error should clear.
Is it safe to run my Viking dishwasher when the NORMAL WASH + LED1 error is active?
No, it is not safe to continue operating the dishwasher while this error is active. Water in the base pan can reach electrical components, create a shock hazard, and cause damage to your floors or cabinetry. The dishwasher should remain off until the leak is found and fully repaired.
Will resetting my Viking dishwasher clear the NORMAL WASH + LED1 error?
A reset may temporarily clear the displayed error, but the moisture sensor will activate again as soon as the dishwasher runs and the base pan collects water from the unresolved leak. Clearing the error without fixing the root cause is not a solution and could allow water damage to worsen.
How much does it cost to repair a Viking dishwasher showing the NORMAL WASH + LED1 error?
Repair costs vary depending on the leak source. A simple fix like reseating a hose clamp may cost very little beyond a service call fee, typically in the range of $75 to $150. Replacing components such as a door gasket, water inlet valve, or pump seals can bring total repair costs to anywhere from $150 to $400 or more, depending on parts and labor rates in your area.

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