Dishwasher Drain Air Gap Overflow

A problem with the air gap can cause the dishwasher not to drain at all or it can cause water to leak into the sink or onto the countertop.

Dishwasher drain air gap overflow.

Insert a screwdriver into the dishwasher drain line opening to see if the drain line plug is still in the. The air gap makes a hole for air to get in. How to fix a dishwasher overflowing into a sink step 1. Turn both the cold and hot water supply valves off fully in a counterclockwise direction.

An air gap is a simple device that allows air to break the flow of wastewater into the dishwasher. Air gaps prevent water from siphoning backward a possibility in the unlikely event the water level in the sink is high. When water flows through the drain hose it creates a suction on the water still in the dishwasher. When the gap leaks it is normally due to a kink or blockage in the tube from the air gap to the tail piece drain line below the sink.

Remove the slip joint underneath the air gap under the sink cabinet by turning counterclockwise with adjustable. This way the water only leaves the dishwasher when it is pumped out. A dishwasher air gap is a fitting mounted about two inches above the sink that prevents contaminated water from re entering the dishwasher from the drain via backflow. Your dishwasher is connected to the kitchen drain through an air gap allowing air to flow into the dishwasher as it drains for a controlled drain.

Simple fast way to get your dishwasher draining properly again produced by scott the fix it guy with over 20 years of repair experience. Without the air gap dishwashers must siphon out all of its water or pull dirty wastewater into the dishwasher to drain. Please visit our we. The air gap is just that a gap of air in the dishwasher drain line so dirty water can not be forced up out of the sink and into the dishwasher.

When water under pressure backs up into the air gap it s discharged through the holes in the air.