How do I clean an air gap in my dishwasher drain line?
The air gap is easy to clean. Turn off the dishwasher and lift off the chrome cover. Unscrew the plastic cap and clean with a toothpick. You should check the air gap any time your dishwasher isn't draining well. (Page 9)
From the official GE Profile Series Dishwasher manual, page 9
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