--- title: "Dishwasher not draining" description: "Monogram dishwasher not draining: the most common dishwasher call there is, and on these machines it usually comes with a code nobody has seen — the display…" url: "https://monogrammiami.support/symptoms/dishwasher-not-draining/" date_modified: "2026-09-02" Appliance type: "Dishwashers" --- # Monogram dishwasher not draining ### Open the door and read the display Before you do anything else. On a fully integrated dishwasher the code is on the top edge of the door and it narrows the job immediately — C1 is the drain taking too long, C3 is no drain at all, C5 is a drain that finished suspiciously fast. Then take out the filter in the floor of the tub. It unscrews by hand and it resolves a good share of these calls. ### What it usually means, by the kind of Monogram appliance Monogram sells one appliance in several forms, and the same behavior points at different things on each of them. A built-in side-by-side and an integrated column are not the same service situation, and a dual-fuel range and an induction range fail in different halves. - **Fully integrated machines** — The control panel is on the top edge of the door. A machine that has stopped mid-cycle looks like a cabinet door to the room, and the code that would explain it is there where nobody looks. - **Machines with Floor Protect** — These cancel a cycle and show LEAK DETECTED or 999 rather than simply failing to drain, which is a different and more urgent conversation. - **Panel-ready doors** — If the machine has to come out of the run for a pump or a hose, the panel is part of the job. ### The hidden control panel changes this whole page On a fully integrated machine the display faces upward on the top edge of the door. Every code the manufacturer publishes is there, and almost no owner has ever seen one, because you have to open the door to read it and by then people are looking at the water. If you take one thing from this site, take that. In the floor of the tub, under the lower spray arm. It unscrews, and most owners have never removed it. The small chrome cylinder on the countertop, where the installation has one. It blocks and it is easy to clean. The drain hose and its high loop A hose that has slipped down siphons and holds water in the tub every cycle. The disposal knockout plug New disposals ship with a plug in the dishwasher inlet. Left in, the machine has nowhere to drain. The drain pump After everything upstream is proved clear, and measured rather than assumed. Rare, and reached last. Read the code Top edge of the door, with the door open. Take out the filter It unscrews. Rinse it and look at what comes off. Check the air gap If the counter has one, take the cap off and look inside. Ask whether the disposal is new If it was replaced since the dishwasher last drained properly, that is very likely the answer. Water standing in the bottom at the end of a cycle What it usually means Read the top edge of the door first The filter unscrews and most owners never have A disposal knockout plug is a real cause Open the door and read the display Before you do anything else. On a fully integrated dishwasher the code is on the top edge of the door and it narrows the job immediately — C1 is the drain taking too long, C3 is no drain at all, C5 is a drain that finished suspiciously fast. Then take out the filter in the floor of the tub. It unscrews by hand and it resolves a good share of these calls. What it usually means, by the kind of Monogram appliance Monogram sells one appliance in several forms, and the same behavior points at different things on each of them. A built-in side-by-side and an integrated column are not the same service situation, and a dual-fuel range and an induction range fail in different halves. Fully integrated machines — The control panel is on the top edge of the door. A machine that has stopped mid-cycle looks like a cabinet door to the room, and the code that would explain it is there where nobody looks. Machines with Floor Protect — These cancel a cycle and show LEAK DETECTED or 999 rather than simply failing to drain, which is a different and more urgent conversation. Panel-ready doors — If the machine has to come out of the run for a pump or a hose, the panel is part of the job. The hidden control panel changes this whole page On a fully integrated machine the display faces upward on the top edge of the door. Every code the manufacturer publishes is there, and almost no owner has ever seen one, because you have to open the door to read it and by then people are looking at the water. If you take one thing from this site, take that. ### There is water in the bottom all the time, even between cycles. A small amount in the sump is normal and stops the seals drying out. A pool covering the filter is not. ### It started right after we replaced the garbage disposal. Then it is almost certainly the knockout plug that ships in the dishwasher inlet. A five-minute fix and a very common one. --- **[Read full article: Dishwasher not draining](https://monogrammiami.support/symptoms/dishwasher-not-draining/)**