Viking Dishwasher Error Code POTS PANS + LED5

The POTS PANS + LED5 error code on a Viking dishwasher indicates a Cycle Error tied specifically to an internal control processor fault within the motor controller's data processor. This means the motor controller board, which governs pump and wash motor operation, has detected an error in its own onboard microprocessor. The motor controller is a dedicated sub-controller separate from the main control board, responsible for interpreting commands and regulating motor speed, direction, and timing throughout the wash cycle.

This type of internal processor error typically points to a communication breakdown or a logic failure within the motor controller itself. Common triggers include voltage spikes or power surges that corrupt the processor's operating state, brownout conditions that cause the controller to lose its reference signals, or component-level failures on the motor controller board such as a failed capacitor or degraded solder joint. Because the fault originates inside the controller's data processor, it is often not caused by the motor itself but rather by the electronics managing it.

The first diagnostic step is a full power reset, which involves cutting power to the dishwasher at the circuit breaker for at least 60 seconds and then restoring it. This clears the processor's volatile memory and allows the controller to reinitialize. If the error returns immediately or recurs during the next cycle, the motor controller board is the primary suspect and will likely require replacement. Persistent errors after a successful reset that reappear under load may also indicate unstable incoming power or a failing connection between the main board and the motor controller.