Viking Built-In Dishwasher Code AC Power Loss: power dropped during a cycle

What AC Power Loss means

On Viking Professional VDB450 and Designer DDB325 built-in dishwashers with the second-generation electronic control, AC Power Loss means incoming power was lost while a cycle was running. When power comes back, the indicator lights flash in a pattern to tell you the cycle was interrupted rather than finished. The Pots/Pans light flashes, then the Normal Wash light flashes, and the dishes inside will be only partly washed.

Common causes of AC Power Loss

Power to the dishwasher interrupted during the cycle, such as a tripped breaker or a brief outage
Loose or worn connection feeding the dishwasher
Power-supply problem inside the control if outages are not happening

✓ One safe check you can try

1. Check whether the lights in the house went out or a breaker tripped. Reset the dishwasher's breaker once if it did. 2. Close the door fully and press Start or Resume to continue. 3. Hold START for four seconds if you prefer to cancel and run a fresh cycle. 4. If the lights flash again with steady power in the house, call us.

! Why to stop there

A one-time outage needs no repair, so a visit only helps when it repeats
Repeated power loss may come from the supply or the control, and each needs different tools
We give a written price before work and a 30-day warranty on what we fix

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Dishwasher codes

Moisture SensorViking Built-In Dishwasher Message "Pan Flood": moisture sensor detects water in the base pan Moisture Sensor DisconnectViking Built-In Dishwasher Code Pan Flood Sensor Disconnect (1-1): flood sensor not connected Motor Control Comms ErrorViking Built-In Dishwasher Code Motor Control Comms Error (1-3): motor control not answering Motor Control Status ErrorViking Built-In Dishwasher Code Motor Control Status Error (1-2): motor control reports a problem Motor Status ErrorViking Built-In Dishwasher Code Motor Status Error (3-4): wash motor status reported Motor Under Voltage ErrorViking Built-In Dishwasher Code Motor Under Voltage Error (3-5): motor supply too low E:09Viking Dishwasher Code E:09: display board communication problem Pots/Pans + Heavy FlashingViking Designer Dishwasher Code Pots/Pans + Heavy Flashing: blocked drain

AC Power LossAC Power Loss questions

Is AC Power Loss a sign my dishwasher is broken?

Not on its own. It records that power dropped during a cycle. A storm or a tripped breaker is enough to cause it. Repeated alerts with steady house power deserve a service look.

Do I have to start the whole cycle again?

Often you can press Start or Resume and the cycle carries on. For a heavily soiled load, hold START for four seconds to cancel and run it again from the beginning.

Why did it flash when I came back from the store?

If power flickered while you were out, the dishwasher cannot tell you the time. It shows the interrupted-cycle lights when it comes back, so you know the dishes may be unwashed.