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Error code reference

Viking Dishwasher Error Code Diverter Error

The wash diverter motor is not operating or responding correctly.

Viking codesViking dishwasher codes

The wash diverter motor is not operating or responding correctly.

First step from the service manual

Check for diverter motor operation (clicking of diverter motor) and motor not circulating; check diverter assembly.

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 Diverter Error means on a Viking dishwasher

The Diverter Error on a Viking dishwasher indicates that the wash diverter motor is failing to operate or respond as expected during a wash cycle. The diverter motor controls a valve assembly that redirects water flow between the upper and lower spray arms at timed intervals. When this component functions correctly, the dishwasher alternates water pressure between spray zones to ensure thorough coverage of the dish load. A failure in this system disrupts that distribution, resulting in poor wash performance and triggering the error code.

The first diagnostic step is to listen for a clicking sound from the diverter motor during operation. This clicking indicates the motor is attempting to actuate the diverter valve. If no clicking is heard, the motor may have lost power, seized mechanically, or failed electrically. If clicking is present but water circulation is not responding correctly, the issue may lie within the diverter assembly itself, such as a stuck or broken valve gate that the motor cannot move.

Common root causes include a burned-out diverter motor, a jammed diverter valve assembly due to debris or mineral buildup, wiring harness faults between the control board and the motor, and in some cases a control board that is not sending the correct signal to the motor. A full diagnosis should include checking the diverter assembly for physical obstructions, inspecting wiring connections for corrosion or damage, and confirming whether the motor receives power during the cycle.

Source: manufacturer service documentation.

Common causes of Diverter Error

  1. 01

    Failed Diverter Motor

    Part replacement

    The diverter motor itself may have burned out or seized, causing it to stop responding entirely. A lack of clicking sound from the motor location during cycle operation is a strong indicator of motor failure.

  2. 02

    Jammed Diverter Assembly

    Wiring / connection

    Debris, broken plastic fragments, or heavy mineral deposits can physically obstruct the diverter valve, preventing it from moving even when the motor is functional. Inspecting the diverter assembly for blockages or damage is a necessary step.

  3. 03

    Wiring Harness Fault

    Wiring / connection

    A damaged, corroded, or disconnected wiring harness between the control board and the diverter motor can interrupt the signal or power supply needed for motor operation. Visually inspect the connectors and wire routing for signs of wear or corrosion.

  4. 04

    Control Board Not Signaling Motor

    Part replacement

    If the main control board is not sending the correct output signal to the diverter motor, the motor will not activate regardless of its condition. This is typically diagnosed after ruling out the motor and wiring as the source of the fault.

  5. 05

    Motor Running But Not Circulating Water

    Part replacement

    In some cases the motor clicks and actuates but the diverter valve fails to redirect water flow properly, which can point to a cracked or worn valve gate within the diverter assembly itself.

See the test procedure for each cause

Frequently asked questions about Diverter Error

What does Diverter Error mean on a Viking dishwasher?
A Diverter Error on a Viking dishwasher means the wash diverter motor is not operating or responding correctly during the wash cycle. The diverter motor controls how water is directed between the spray arms in the dishwasher. When this motor fails or the diverter assembly is jammed, the dishwasher cannot properly distribute water and will display this error. Diagnosis starts with checking for clicking sounds from the diverter motor and inspecting the diverter assembly for physical issues.
Can I fix a Viking dishwasher Diverter Error myself?
Some causes of this error are DIY-accessible, such as clearing debris or buildup from the diverter assembly. However, replacing the diverter motor or diagnosing wiring and control board issues typically requires disassembly of the dishwasher and comfort working with electrical components. If you are not experienced with appliance repair, it is safer to contact a qualified technician for motor or board-related repairs.
Is it safe to run my Viking dishwasher when the Diverter Error is displayed?
Running the dishwasher with an active Diverter Error is not recommended. The diverter system controls water distribution, and operating without it functioning correctly will result in poor cleaning performance. Continuing to run cycles with this fault may also stress other components. It is best to resolve the error before resuming normal use.
How much does it cost to repair a Viking dishwasher Diverter Error?
Repair costs depend on the root cause. Clearing a physical jam in the diverter assembly may only involve a service call fee, typically in the range of $75 to $150. Replacing a diverter motor or diverter assembly can bring total costs to $150 to $400 or more depending on parts and labor rates in your area. Control board replacement is generally the most expensive repair path.
Will resetting my Viking dishwasher clear the Diverter Error?
A reset may temporarily clear the error code, but it will return if the underlying problem with the diverter motor or assembly has not been resolved. Resetting does not fix a failed motor, physical jam, or wiring fault. Use a reset only as a preliminary step to confirm whether the error is intermittent or persistent, and then proceed with a full diagnosis of the diverter system.

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