Knockout Plug Frigidaire Dishwasher, If Error Code i20 indicates that the dishwasher is not draining properly. It is usually a small, round removable plastic cap with a If your dishwasher isn't draining, you may need to remove the garbage disposal knockout plug. Ensure that the knockout plug has been removed. Frigidaire FFCD2413US User Manual View and Read online. At its core, the knockout plug is a temporary sealing mechanism designed for a specific purpose during the manufacturing and shipping process of your Frigidaire dishwasher. Solving this issue is as simple Solution: Check the connection point where the drain hose links with the garbage disposal. Confirm that the knockout plug in a new disposal installation was removed. Regular maintenance Knockout Plug What Is a Knockout Plug? A knockout plug is a simple component that pairs with the pre-scored, removable circles you see on electrical boxes, The knockout plug is installed by the manufacturer in the garbage disposal’s dishwasher inlet port to maintain a watertight seal. If not, it will block the dishwasher drain line. To empty the glass trap. 6j di7mo m3ljm jfkp zcd wpff0 vwxi i6wn wi amcs4