Viking Dishwasher Error Code Flash all LEDs
AC power loss
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 (325/450 only).
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
Get the full diagnostic procedure for Flash all LEDs.
- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts from the OEM service manual
- Verified part numbers when replacement is required
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What Flash all LEDs means on a Viking dishwasher
When all LEDs flash simultaneously on a Viking dishwasher, the control board is signaling that AC power was interrupted while a wash cycle was actively running. The machine stores cycle state information in its control memory, and when power drops unexpectedly, the board detects the discontinuity upon restoration and flags the condition by illuminating all indicator lights at once. This is a protective status alert rather than a component failure code.
The power loss event can originate from the home electrical supply, a tripped circuit breaker, a loose connection at the wall outlet or junction box, or a brief utility grid interruption. In each case, the dishwasher simply lost the voltage it needed to continue the cycle. The control board cannot distinguish between a momentary flicker and a sustained outage, so it treats any mid-cycle power loss the same way and holds the flashing LED state until the operator acknowledges it.
On Viking 325 and 450 series dishwashers, the designated reset procedure is to press and hold the START button for 3 seconds. This clears the alert from the control board and allows the machine to return to standby. If the LEDs continue to flash after performing the reset, or if the condition recurs frequently, further investigation of the home circuit, the door latch switch, and the power supply connections is warranted before resuming normal operation.
Source: manufacturer service documentation.
Common causes of Flash all LEDs
- 01
Household power interruption
Wiring / connectionA brief utility outage, grid fluctuation, or momentary voltage drop is the most common trigger. Check whether other appliances or lights in the home were also affected at the same time.
- 02
Tripped circuit breaker
Wiring / connectionThe dishwasher circuit breaker may have tripped due to an overload or a fault. Locate the breaker panel, identify the dishwasher circuit, and reset any tripped breakers before running the appliance again.
- 03
Loose or faulty power connection
Wiring / connectionA loose wire at the wall outlet, the junction box, or the terminal block inside the dishwasher can cause intermittent power loss during operation. Inspect connections for signs of arcing, corrosion, or looseness.
- 04
Faulty wall outlet or power cord
Part replacementA deteriorating outlet or damaged supply cord can drop power unpredictably under the load of a running cycle. Test the outlet with a multimeter or plug-in tester and inspect the cord for damage.
- 05
Control board power supply failure
Part replacementIf power interruptions occur repeatedly with no external electrical cause, the internal power supply section of the control board may be failing. This typically requires professional diagnosis and board replacement.
Frequently asked questions about Flash all LEDs
What does Flash all LEDs mean on a Viking dishwasher?
How do I reset the flashing LED error on my Viking dishwasher?
Is it safe to use my Viking dishwasher after all LEDs flash?
Will resetting the dishwasher clear the flashing LED error permanently?
How much does it cost to repair a Viking dishwasher showing the flashing LED error?
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