Viking Dishwasher Error Code LIGHT CHINA + LED1

This error indicates a User Interface state error, meaning the control panel and the main control board have lost synchronization and entered an inconsistent logical state. It is an electronic communication issue rather than a mechanical or sensor problem. The dishwasher flags this condition by illuminating the Light China cycle indicator along with LED1.

A state error typically prevents the dishwasher from operating normally, so running a full cycle may not be possible until the error is resolved. If the machine does run, it is best to avoid using it until the root cause is confirmed, as an underlying board or wiring issue could potentially worsen. Clearing the error with a reset and monitoring for recurrence is the safest approach before resuming regular use.

If a reset resolves the issue, there is no parts cost involved, though a service call for diagnosis can range from around 80 to 150 dollars depending on your area. If the user interface board needs replacement, parts and labor combined typically range from 200 to 450 dollars. A main control board replacement tends to cost more, often falling in the 300 to 600 dollar range including labor.

A reset is the first recommended step and will clear the error if it was caused by a temporary glitch or power fluctuation. To reset, turn off the circuit breaker or unplug the dishwasher, wait at least 60 seconds, then restore power. If the error returns after the reset, a hardware component such as the wiring harness or one of the control boards likely needs further diagnosis.

Start by performing a full power reset: cut power at the breaker for at least 60 seconds, then restore it and run a test cycle. If the error persists, inspect the wiring harness and connectors between the user interface board and the main control board for loose connections or damage. If the wiring is intact, the user interface board or main control board may need to be replaced.