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Error code reference

Viking Dishwasher Error Code High Water Level

Water level in the tub has exceeded the normal maximum level.

Viking codesViking dishwasher codes

Water level in the tub has exceeded the normal maximum level.

First step from the service manual

Normal reset and test; check the pressure (HUBA) sensor.

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

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What High Water Level means on a Viking dishwasher

The High Water Level error on a Viking dishwasher indicates that the water inside the wash tub has risen above the normal operating maximum. The dishwasher's control system monitors water volume through a pressure sensor, specifically a HUBA-type pressure sensor, which detects tub water level by measuring air pressure in a sealed chamber connected to the tub floor. When the sensor signals that the water level has exceeded the programmed threshold, the control board triggers this error and typically halts the fill cycle to prevent overflow.

The most common source of this fault is a malfunctioning HUBA pressure sensor that sends an inaccurate reading to the control board, either because the sensor itself has failed or because the tubing connecting the sensor to the tub air chamber is kinked, clogged, or disconnected. A faulty water inlet valve that does not close fully when commanded can also allow continued water entry, causing the level to rise unchecked. In some cases, a failed control board that does not properly cut power to the inlet valve is the root cause.

Diagnosis begins with a normal reset: power the unit off at the breaker for 60 seconds, then restore power and run a test cycle to see if the fault reappears. If it does, the next step is inspecting and testing the HUBA pressure sensor, its connecting tubing, and the wiring harness to the sensor. Checking the inlet valve for proper shutoff behavior is also essential if the sensor and its circuit test within spec.

Source: manufacturer service documentation.

Common causes of High Water Level

  1. 01

    Faulty HUBA Pressure Sensor

    Part replacement

    The HUBA pressure sensor can fail and send incorrect high-level readings to the control board even when actual water volume is normal. Inspect the sensor and its wiring harness, and test sensor output to confirm it is reading accurately.

  2. 02

    Kinked or Blocked Sensor Tubing

    Wiring / connection

    The small air tube connecting the pressure sensor to the tub chamber can become kinked, cracked, or clogged with debris, causing inaccurate pressure readings. Visually inspect the full length of this tubing for obstructions or damage.

  3. 03

    Water Inlet Valve Not Closing

    Part replacement

    A worn or debris-fouled inlet valve solenoid may fail to fully close when the control board signals it to stop, allowing water to continue entering the tub. This can be identified by checking whether water enters the tub when the machine is powered off.

  4. 04

    Control Board Fault

    Part replacement

    If the control board fails to cut power to the inlet valve at the correct time, overfilling can occur even if the sensor and valve are individually functional. A control board fault is usually suspected after the sensor and valve have been ruled out.

  5. 05

    Wiring or Connector Issues

    Wiring / connection

    Corroded or loose connectors between the pressure sensor and the control board can produce erratic or false high-level signals. Inspect the harness connectors at both the sensor and board ends for corrosion, moisture damage, or loose terminals.

See the test procedure for each cause

Frequently asked questions about High Water Level

What does High Water Level mean on a Viking dishwasher?
The High Water Level error means the dishwasher's control system has detected water in the tub that exceeds the normal maximum fill threshold. The machine halts the cycle to prevent overflow. The detection is performed by a HUBA-type pressure sensor that monitors tub water level during operation.
Will resetting my Viking dishwasher clear the High Water Level error?
A reset by cutting power at the breaker for 60 seconds may clear the error temporarily if it was caused by a one-time sensor glitch. However, if the underlying cause is a failing pressure sensor, a stuck inlet valve, or a wiring fault, the error will return once the machine runs again. A reset is a useful first diagnostic step, not a permanent fix.
How do I fix the High Water Level error on my Viking dishwasher?
Start by performing a reset and running a test cycle to see if the error reappears. If it does, inspect the HUBA pressure sensor and its connecting air tube for damage, blockages, or loose connections. If the sensor and tubing appear intact, the inlet valve should be tested for proper shutoff. Persistent faults after those checks may point to a control board issue requiring professional diagnosis.
Is it safe to use my Viking dishwasher when the High Water Level error is active?
You should not continue running the dishwasher until the cause of the error is identified and corrected. If the inlet valve is actually failing to close, operating the machine could result in tub overflow and water damage to surrounding cabinetry or flooring. Discontinue use until the fault is diagnosed.
How much does it cost to repair a Viking dishwasher High Water Level error?
Repair costs depend on the failed component. Replacing a HUBA pressure sensor typically runs in the range of $75 to $200 including parts and labor. A water inlet valve replacement generally falls in the $100 to $250 range. Control board replacement is the most expensive possibility, often ranging from $250 to $600 or more depending on the specific model and local labor rates.

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