mypros+
Error code reference

Viking Dishwasher Error Code Flash both LED1 and LED2

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.

MyPros+ Max

Get the full diagnostic procedure for Flash both LED1 and LED2.

  • 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
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What Flash both LED1 and LED2 means on a Viking dishwasher

The simultaneous flashing of both LED1 and LED2 on a Viking dishwasher signals an AC power loss event that occurred while a wash cycle was actively running. The control board monitors incoming AC power continuously during operation, and when that supply is interrupted unexpectedly, the board registers and stores this fault condition. Upon power restoration, both LEDs flash in tandem to alert the user or technician that the cycle did not complete normally and that the machine requires attention before resuming normal operation.

This fault is tied to the dishwasher's main control board and its ability to track cycle state. When AC power drops mid-cycle, the board loses the ability to track where in the cycle the machine was operating, which can leave water in the tub, detergent partially dispensed, or the door latch in an undefined state. The control board flags this condition rather than attempting to restart automatically, which protects internal components from operating under unknown conditions.

Common causes include brief household power outages, tripped circuit breakers, a loose or faulty power cord connection, and transient voltage fluctuations on the home's electrical circuit. Because this is an event-based code rather than a component failure code, it does not necessarily indicate a defective part. The first diagnostic step is a soft reset: press and hold the Start button for 3 seconds. This clears the stored fault and allows the control board to return to a ready state so a new cycle can be started.

Source: manufacturer service documentation.

Common causes of Flash both LED1 and LED2

  1. 01

    Brief household power outage

    Wiring / connection

    A momentary power interruption anywhere in the home will cut AC power to the dishwasher mid-cycle and trigger this code. Check if other appliances or clocks in the home lost power around the same time.

  2. 02

    Tripped circuit breaker

    Wiring / connection

    A tripped breaker on the dishwasher's dedicated circuit will cut power during operation. Inspect the home's electrical panel for a breaker that is in the tripped or off position and reset it before attempting to restart the dishwasher.

  3. 03

    Loose power cord or wall connection

    Wiring / connection

    A partially seated power cord at the outlet or a loose wire connection at the junction box can cause intermittent power loss. Inspect the power cord plug and the outlet for secure contact and signs of arcing or discoloration.

  4. 04

    Faulty wall outlet or loose wiring

    Part replacement

    A defective outlet or loose wiring inside the wall box can cause voltage drops or complete power loss under load. Test the outlet with a multimeter or plug-in tester to confirm it is delivering consistent voltage.

  5. 05

    Control board power supply failure

    Part replacement

    If power outages or tripped breakers are ruled out and the code appears repeatedly during normal operation, the control board's internal power regulation components may be failing, causing it to drop AC power detection erroneously. This would require control board inspection or replacement.

See the test procedure for each cause

Frequently asked questions about Flash both LED1 and LED2

What does Flash both LED1 and LED2 mean on a Viking dishwasher?
When both LED1 and LED2 flash simultaneously on a Viking dishwasher, the control board is indicating that AC power was lost while a cycle was actively running. The board stores this event and alerts you upon power restoration rather than attempting to restart automatically. It does not necessarily mean a component has failed. Pressing and holding the Start button for 3 seconds will reset the fault.
Will resetting the dishwasher clear the flashing LED1 and LED2 code?
Yes, in most cases a reset will clear this code. Press and hold the Start button for 3 seconds to perform the reset. If the LEDs stop flashing and the machine returns to a ready state, you can begin a new wash cycle normally. If the code returns during the next cycle without any power interruption in the home, further diagnostic investigation of the wiring or control board is warranted.
Is it safe to use my Viking dishwasher after it shows the flashing LED1 and LED2 error?
Yes, it is generally safe to use the dishwasher after resetting it, provided the power loss was caused by an external event like an outage or a tripped breaker rather than an internal wiring problem. Before restarting, confirm your home's electrical circuit is functioning correctly and that the dishwasher's power cord and outlet show no signs of damage or overheating. If you suspect a wiring issue, have a technician inspect the circuit before operating the appliance.
How do I fix the flashing LED1 and LED2 error on my Viking dishwasher?
Start by pressing and holding the Start button for 3 seconds to reset the control board. Next, check your home's circuit breaker panel for any tripped breakers and confirm the dishwasher's outlet is delivering power correctly. If the reset clears the code and the cause was an external power interruption, no further repair is needed. If the code returns repeatedly during normal operation, inspect the power cord connection and consider having the control board evaluated by a technician.
How much does it cost to repair a Viking dishwasher showing the flashing LED1 and LED2 error?
If the issue is simply an external power interruption, the fix costs nothing beyond your time to reset the machine and check the breaker. If the outlet or household wiring needs repair, expect electrician costs in the range of $75 to $250 depending on the scope of work. In the unlikely event the control board requires replacement, parts and labor costs for a Viking dishwasher control board typically range from $200 to $500 or more depending on your region and the specific board involved.

Related Viking dishwasher codes

All Viking dishwasher codes
View all 101 Viking dishwasher codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass