u/7891QD

Hello, I have a GE portable dishwasher that has been amazing for a couple years, but has started showing error 999. The model number is GPT225SSLSS. I can't find anything online about what the error means, other than a communication error.

The dishwasher gets through the prewash cycle, pumps the water out correctly, then starts filling for the wash cycle. It then beeps three times and shows the 999 error. Holding start and cycle select clears the error.

Any advice? Thank you!