Viking Dishwasher Error Code LIGHT CHINA + LED2

The LIGHT CHINA + LED2 indicator combination on a Viking dishwasher signals a State Error, which means the main control board has entered an undefined or invalid operational state. The main control board is the central processing unit of the dishwasher, responsible for coordinating all wash cycles, sensor inputs, motor outputs, and component timing. When the control board loses track of its expected operational sequence or receives conflicting internal logic signals, it flags this state error and halts normal operation to prevent further issues.

State errors of this type typically originate from a disruption in the control board's memory or logic processing. Power fluctuations, transient voltage spikes, or a brief interruption in supply power can cause the board's firmware to enter an unrecognized state. In some cases, corrupted cycle data or a communication fault between the main board and peripheral components can trigger the same condition. Because the board cannot self-correct once in this state, it raises the alert through the LIGHT CHINA indicator paired with LED2.

The first and most important diagnostic step is a normal reset and functional test. This involves cutting power to the dishwasher at the circuit breaker or unplugging it, waiting at least one to two minutes to allow capacitors to discharge and memory to clear, then restoring power and running a test cycle. If the error returns immediately after the reset, the main control board itself is the primary suspect and should be inspected or replaced. Persistent state errors that survive multiple reset attempts are a strong indicator of a hardware fault on the control board rather than a transient software glitch.