,CO code o display
Hello Friend, that's a great question!
Typically error code "CO" indicates a communication error between the control boards. One of the best ways to determine if this is a false error code is to reset the power to your dishwasher by flipping off the breaker for about ten minutes. If the error code persists, it would be advisable to contact an experienced appliance repair tech to assist further. I hope this helps explain the error code you are receiving. Best - Z
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