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Error code reference

Viking Dishwasher Error Code 2-2

Fill Error (pressure sensor models)

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Fill Error (pressure sensor models) – during a fill, the pressure sensor output does not reach target fill pressure.

First step from the service manual

Verify water is turned on; verify fill line is not kinked; verify dishwasher is level; verify no decrease in water pressure; check defective pressure sensor; check defective control.

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

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What 2-2 means on a Viking dishwasher

Error code 2-2 on a Viking dishwasher indicates a Fill Error specific to pressure sensor models. During the fill cycle, the control board monitors the output signal from the pressure sensor to confirm that water has reached the target fill level. If the pressure sensor does not report the expected pressure within the allotted time, the control board terminates the fill cycle and stores error code 2-2. This code points to a failure somewhere in the water delivery or pressure detection system rather than a single failed component.

The most common root causes fall into two categories: water supply issues and component failures. On the supply side, a closed or partially closed water supply valve, a kinked fill line, or reduced household water pressure can all prevent adequate water from entering the tub. A dishwasher that is not level can also affect how water distributes across the tub floor, which may cause the pressure sensor to read an inaccurate level. On the component side, a defective pressure sensor may send an incorrect signal to the control board even when the tub is filling normally, or a faulty control board may misinterpret a valid pressure sensor signal. Diagnosing the difference between a supply problem and a component problem requires working through the supply path first before condemning the sensor or control.

Source: manufacturer service documentation.

Common causes of 2-2

  1. 01

    Water supply valve closed or restricted

    Wiring / connection

    If the shutoff valve under the sink is fully or partially closed, the dishwasher cannot draw enough water to reach target fill pressure. Confirm the valve is fully open and that water flows freely to the unit.

  2. 02

    Kinked or obstructed fill line

    Wiring / connection

    The water inlet hose running from the supply valve to the dishwasher can kink, especially if the unit was recently moved or installed. Inspect the full length of the fill line for bends or compression points that would restrict flow.

  3. 03

    Low household water pressure

    Wiring / connection

    Insufficient incoming water pressure will slow or prevent the tub from reaching target fill levels within the control board's timing window. Check pressure at a nearby faucet and compare it to the dishwasher's minimum pressure requirement.

  4. 04

    Defective pressure sensor

    Part replacement

    The pressure sensor monitors water level by detecting tub pressure. If the sensor has failed or is producing an out-of-range signal, it will report a low-fill condition to the control board even when the tub is filling correctly. The sensor should be tested and replaced if it does not respond accurately.

  5. 05

    Dishwasher not level

    Wiring / connection

    An unlevel dishwasher can cause water to pool unevenly in the tub, preventing the pressure sensor from detecting the correct fill level. Use a level to check the unit side-to-side and front-to-back, and adjust the leveling legs as needed.

See the test procedure for each cause

Frequently asked questions about 2-2

What does 2-2 mean on a Viking dishwasher?
Error code 2-2 on a Viking dishwasher is a Fill Error that occurs on pressure sensor models. It means the pressure sensor did not detect the target fill pressure during the fill cycle, indicating the tub did not receive enough water in the expected timeframe. The cause can range from a simple water supply issue to a failed pressure sensor or control board.
How do I fix error code 2-2 on my Viking dishwasher?
Start by confirming the water supply valve is fully open and the fill line has no kinks or obstructions. Make sure the dishwasher is level and that your home's water pressure is adequate. If the water supply checks out, the pressure sensor or control board may need to be tested and replaced by a qualified technician.
Will resetting my Viking dishwasher clear error code 2-2?
A reset may temporarily clear the code, but it will return if the underlying problem is not resolved. If the fill condition is caused by a supply restriction or leveling issue that you correct before the next cycle, the code should not reappear. If the pressure sensor or control board is defective, the error will come back until those components are repaired or replaced.
Is error code 2-2 on a Viking dishwasher a safety concern?
Error code 2-2 is not typically a safety hazard. The dishwasher stops the fill cycle when it does not detect the correct water level, which prevents overfilling. However, running the unit repeatedly while this error is active can stress the inlet components, so it is best to diagnose and resolve the issue before continuing normal use.
How much does it cost to repair a Viking dishwasher showing error code 2-2?
If the problem is a kinked hose or an improperly adjusted leveling leg, there may be no parts cost at all. A replacement pressure sensor typically runs in the range of $30 to $100 for the part, while a control board replacement can cost $150 to $400 or more depending on the model. Labor charges from a service technician will add to those figures.

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