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Error code reference

Viking Dishwasher Error Code All LEDs flash but start

AC Power Loss

Viking codesViking dishwasher codes

AC Power Loss - power loss occurred during a running cycle.

First step from the service manual

Reset by pressing and holding start for 3 seconds.

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

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What All LEDs flash but start means on a Viking dishwasher

When all LEDs on a Viking dishwasher illuminate simultaneously except for the Start LED, the control board is signaling that AC power was interrupted while a wash cycle was actively running. This is not a component failure code in the traditional sense. Instead, it is a power-loss memory flag that the control board sets to alert the user that the cycle did not complete normally. The board detects the interruption by comparing its last saved cycle state against the current power-on state at startup.

The most common triggers are household-level events: a tripped circuit breaker, a brief utility outage, or someone accidentally unplugging the unit or switching off the wall outlet. The dishwasher's control board retains a record of the interrupted cycle and uses the LED flash pattern to communicate that state rather than resuming automatically, which could cause issues if water conditions or door status changed during the outage.

Because this is a status notification rather than a fault tied to a specific failed component, the reset procedure is straightforward. Pressing and holding the Start button for 3 seconds clears the power-loss flag from the control board's memory and returns the unit to a ready state. If the LED pattern returns immediately after reset without a subsequent power interruption, further investigation into the power supply circuit, the door latch, or the control board itself may be warranted.

Source: manufacturer service documentation.

Common causes of All LEDs flash but start

  1. 01

    Brief household power outage

    Wiring / connection

    A momentary utility outage or voltage dip is enough to interrupt a running cycle and trigger this alert. Check whether other appliances or clocks in the home were also reset around the same time.

  2. 02

    Tripped circuit breaker

    Wiring / connection

    If the dishwasher's dedicated circuit or a shared circuit tripped during the cycle, power was cut abruptly. Inspect the breaker panel for any tripped breakers and reset them before clearing the dishwasher code.

  3. 03

    Accidental power disconnection

    Wiring / connection

    The unit may have been unplugged or the wall outlet switch turned off while a cycle was running. Verify the power cord connection and confirm the outlet is supplying consistent voltage.

  4. 04

    Loose or faulty power cord connection

    Part replacement

    A worn or poorly seated power cord can cause intermittent power loss under the electrical load of a running cycle. Inspect the cord and outlet connection for signs of heat damage, corrosion, or looseness.

  5. 05

    Control board power retention issue

    Part replacement

    If the LED pattern reappears repeatedly after proper resets with no external power interruption present, the control board may be failing to maintain stable power handling internally. This scenario is less common and typically requires board-level diagnosis.

See the test procedure for each cause

Frequently asked questions about All LEDs flash but start

What does All LEDs flash but start mean on a Viking dishwasher?
This LED pattern means the dishwasher's control board detected that AC power was lost while a wash cycle was actively running. The board stores this event and displays the flashing LED alert on the next power-up to notify you the cycle did not finish normally. It is a status notification, not a component fault code. Pressing and holding Start for 3 seconds clears the alert.
How do I fix the All LEDs flash but start error on my Viking dishwasher?
Press and hold the Start button for 3 seconds to reset the control board and clear the power-loss flag. Before doing so, confirm that power to the unit is stable by checking the circuit breaker and the outlet. Once cleared, you can start a fresh cycle normally. If the pattern returns without any new power interruption, inspect the power cord and outlet for faults.
Will resetting the dishwasher clear this error permanently?
Yes, the 3-second Start button reset clears the power-loss flag from the control board's memory. If power to the dishwasher remains stable going forward, the alert should not return. However, if the underlying cause such as a loose connection or recurring breaker trip is not addressed, the same code will appear the next time power is interrupted during a cycle.
Is it safe to use my Viking dishwasher after this error appears?
Yes, this alert does not indicate a hazardous condition or a damaged component in most cases. It simply means the previous cycle was cut short by a power interruption. After performing the reset, inspect the dishwasher interior for any standing water left from the interrupted cycle before running a new one. If water remains, run a drain cycle or manually remove the water first.
How much does it cost to repair a Viking dishwasher showing this error?
In most cases there is no repair cost at all, since the error clears with a simple button-hold reset and no parts are needed. If the cause is a faulty power cord, replacement parts and labor can range from around $50 to $150 depending on the service provider. If the control board itself is found to be faulty after thorough diagnosis, board replacement costs can range from $200 to $500 or more including parts and labor.

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