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Error code reference

Viking Dishwasher Error Code 3-3

Pump Flow Error

Viking codesViking dishwasher codes

Pump Flow Error - control detects insufficient/inconsistent water flow through the wash system and will not allow the flow through heater to activate.

First step from the service manual

Verify water is fully turned on to dishwasher.

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

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What 3-3 means on a Viking dishwasher

Error code 3-3 on a Viking dishwasher indicates a Pump Flow Error. The control board is detecting insufficient or inconsistent water flow moving through the wash system during a cycle. Because adequate flow is required to safely operate the flow-through heater, the control will not allow the heater to activate when this condition is detected. This is a protective function designed to prevent heater damage that could result from heating elements operating without proper water circulation.

The wash system relies on a combination of adequate water supply, a functioning inlet valve, a working circulation pump, and clear spray arm passages to maintain the flow rates the control expects. When the control board's flow monitoring circuit detects a reading outside acceptable parameters, it triggers the 3-3 code and halts heater operation. The most immediate check is confirming the water supply valve beneath the sink is fully open, as a partially closed valve will restrict incoming flow enough to trigger this fault. Beyond the supply side, internal components including the inlet valve, circulation pump motor, and spray arm assemblies should be evaluated if the supply is confirmed adequate.

Source: manufacturer service documentation.

Common causes of 3-3

  1. 01

    Water supply valve not fully open

    Wiring / connection

    A partially closed shutoff valve under the sink restricts incoming water pressure and volume enough to trigger a flow fault. Turn the valve fully counterclockwise and attempt a new cycle.

  2. 02

    Clogged or failed water inlet valve

    Part replacement

    The inlet valve controls water entry into the dishwasher and can become restricted by mineral deposits or debris over time. A blocked or failed valve reduces fill volume, resulting in insufficient flow through the wash system.

  3. 03

    Circulation pump failure or obstruction

    Part replacement

    The circulation pump is responsible for moving water through the wash system during a cycle. A worn pump motor, failed impeller, or debris blockage inside the pump can produce the inconsistent flow the control is detecting.

  4. 04

    Blocked or damaged spray arms

    Wiring / connection

    Spray arm ports clogged with mineral scale or food debris restrict water movement through the system. Inspect the spray arms for blockages and clean or replace them if ports are obstructed.

  5. 05

    Control board fault

    Part replacement

    If all mechanical and supply components check out correctly, the control board's flow monitoring circuit itself may be misreading flow conditions. A faulty control board would require replacement to resolve a persistent 3-3 code with no other identifiable cause.

See the test procedure for each cause

Frequently asked questions about 3-3

What does 3-3 mean on a Viking dishwasher?
Error code 3-3 on a Viking dishwasher is a Pump Flow Error. It means the control board has detected insufficient or inconsistent water flow through the wash system. As a safety measure, the control will not allow the flow-through heater to activate until proper flow is restored. The first step is to confirm the water supply valve is fully open.
How do I fix error code 3-3 on my Viking dishwasher?
Start by verifying the water supply shutoff valve under the sink is fully open. If flow is still insufficient, inspect the water inlet valve for mineral buildup or failure, check the circulation pump for obstructions, and examine the spray arms for clogged ports. If these components are functioning correctly, the control board may require evaluation by a technician.
Will resetting my Viking dishwasher clear the 3-3 error?
A reset may temporarily clear the 3-3 code, but it will return if the underlying flow problem is not corrected. The control monitors flow conditions actively during each cycle, so the fault will reappear whenever water movement falls outside acceptable levels. Addressing the root cause, such as a restricted supply valve or failing pump, is necessary for the error to stay cleared.
Is it safe to use my Viking dishwasher when error code 3-3 is showing?
The dishwasher is designed to disable the flow-through heater when the 3-3 code is active, which prevents heater damage from running without adequate water circulation. However, running the appliance with an unresolved flow problem can place additional strain on the circulation pump. It is best to diagnose and correct the fault before continuing regular use.
How much does it cost to repair a Viking dishwasher showing error code 3-3?
Repair costs vary depending on the failed component. If the issue is simply a closed supply valve, there is no parts cost involved. Inlet valve replacement typically ranges from $75 to $175 in parts and labor, while circulation pump replacement can range from $150 to $400 or more depending on parts availability and local labor rates. A control board replacement represents the higher end of potential repair costs.

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