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Error code reference

Viking Dishwasher Error Code Power Loss (all lights except START and RUN flash continuously)

Power loss detected

Viking codesViking dishwasher codes

Power loss detected

First step from the service manual

Reset and test.

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

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  • Wiring diagram references and connector pinouts from the OEM service manual
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What Power Loss (all lights except START and RUN flash continuously) means on a Viking dishwasher

The Power Loss error on a Viking dishwasher is triggered when the control board detects that power to the unit was interrupted during an active cycle. When this condition occurs, all indicator lights on the control panel flash continuously except for the START and RUN lights, which remain unlit. This distinctive flashing pattern is the control board's way of signaling that the machine stopped mid-operation due to an unplanned power interruption rather than a normal cycle completion or user-initiated pause.

The control system in these dishwashers monitors operational continuity throughout each cycle. If incoming power drops below the required threshold or is cut entirely, the board registers the event and locks into this alert state upon power restoration. The appliance will not resume normal operation or accept new cycle commands until the error is acknowledged and the system is reset. This behavior is a protective function designed to prevent the machine from resuming a cycle in an unknown or potentially unsafe state.

Common triggers include household circuit interruptions, tripped breakers, brief utility outages, or a loose connection at the wall outlet or junction box. In some cases, internal wiring issues or a failing power supply component within the dishwasher itself can cause the board to register repeated power loss events even without an obvious external outage. The first recommended diagnostic step is to perform a reset and run a fresh test cycle to determine whether the error was a one-time event or a recurring fault.

Source: manufacturer service documentation.

Common causes of Power Loss (all lights except START and RUN flash continuously)

  1. 01

    Household power interruption or outage

    Wiring / connection

    A brief utility outage or voltage fluctuation during a cycle is the most frequent cause of this error. Check whether other appliances or lights in the home were also affected around the same time.

  2. 02

    Tripped circuit breaker

    Wiring / connection

    A tripped breaker on the dishwasher's dedicated circuit will cut power mid-cycle and trigger this error. Inspect the breaker panel for any tripped breakers and reset if necessary before restarting the dishwasher.

  3. 03

    Loose wall outlet or power connection

    Wiring / connection

    A loose plug at the wall receptacle or a poorly secured wiring connection at the junction box can cause intermittent power loss. Check that the power cord is fully seated and inspect the outlet or hardwire connection for any looseness or signs of arcing.

  4. 04

    Faulty power supply or control board

    Part replacement

    If the error appears repeatedly without any external power interruption, the internal power supply components or the main control board may be failing. This would typically require component-level testing or board replacement, with control board replacements generally ranging from $150 to $400 depending on the model.

  5. 05

    Door latch or door switch interrupting power signal

    Part replacement

    A worn or misaligned door latch can cause the control board to register a mid-cycle interruption if the door switch momentarily loses contact during operation. Inspect the door latch assembly for wear or misalignment.

See the test procedure for each cause

Frequently asked questions about Power Loss (all lights except START and RUN flash continuously)

What does Power Loss (all lights except START and RUN flash continuously) mean on a Viking dishwasher?
This error means the dishwasher's control board detected that power was cut off during an active wash cycle. The control panel responds by flashing all lights except START and RUN to alert you to the interruption. The machine will not resume or accept new commands until it is reset. In most cases, the cause is an external power event such as an outage or tripped breaker rather than an internal component failure.
Will resetting the dishwasher clear the Power Loss error?
Yes, in most cases a reset will clear the error if the underlying power interruption was a one-time event. Disconnect power to the dishwasher at the breaker or by unplugging it, wait at least 30 seconds, then restore power and run a new cycle. If the error returns repeatedly without any obvious external power issue, further diagnosis of the internal wiring or control board is needed.
Is it safe to use my Viking dishwasher after the Power Loss error appears?
The dishwasher is generally safe to use once the error has been cleared with a reset and the power source has been confirmed as stable. However, if you notice repeated occurrences, signs of arcing at the outlet, or a breaker that trips again, stop using the appliance and have the electrical supply and dishwasher wiring inspected before continuing.
How much does it cost to fix a Viking dishwasher showing the Power Loss error?
If the cause is simply an external power interruption, there is no repair cost beyond your time to reset the unit. If the issue is a faulty outlet or circuit breaker, an electrician's service call typically ranges from $75 to $200. If internal components such as the main control board need replacement, parts and labor can range from $200 to $500 or more depending on the specific model and service location.
Why does my Viking dishwasher keep showing the Power Loss error even when there is no outage?
Recurring Power Loss errors without a clear external cause may point to an internal problem such as a failing control board, a loose internal wiring connection, or a door switch that is intermittently breaking the circuit during operation. A qualified technician should inspect the wiring harness, door latch assembly, and control board to identify the source of the repeated interruptions.

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