Newly installed garbage disposal will not drain dishwasher water (dishwasher backs up)

Safety first: Turn OFF power to the disposal and disconnect the dishwasher from power before working on the drain connection.

• Step 1 – Disconnect dishwasher hose: Loosen the clamp and remove the dishwasher drain hose from the disposal’s dishwasher inlet.
• Step 2 – Check for knockout plug: Shine a flashlight into the inlet. If you see a solid plastic or metal disk, the knockout plug has not been removed.
• Step 3 – Remove the plug: Insert a screwdriver into the inlet and tap gently with a hammer to knock the plug into the disposal chamber. Retrieve the loose plug from inside the chamber using tongs.
• Step 4 – Inspect hose: Ensure the dishwasher hose is not kinked or blocked. Trim and reroute if necessary.
• Step 5 – Reconnect and test: Reattach the hose with a secure clamp, restore power, and run a short dishwasher cycle to confirm proper draining.