What Not Draining means on your Dacor dishwasher (dacor dishwasher not draining)
This is a symptom, not a Dacor error code — while a genuine drain failure on the Legacy EDW/IDW platform shows as f-4, and on Samsung-era models as 5C, standing water is sometimes visible without either code appearing, particularly on a partial or slow drain that has not yet crossed the threshold the sensor is checking. This is common enough that it is worth its own page: a clogged filter, a kinked hose, or a blocked garbage disposal connection can leave visibly standing water even before the control board flags a coded problem.

Symptoms
Run your eye down this list and compare it with the dishwasher in front of you, because Not Draining shares its symptoms with several other dishwasher problems.
- A shallow layer of water remains in the bottom of the tub after a cycle completes with no error code shown.
- Water drains partially but noticeably slower than usual, extending the total cycle time.
- A gurgling sound is heard from the sink or disposal area during the dishwasher’s drain phase.
- The amount of standing water seems to vary between cycles rather than being consistent.
- A recent kitchen sink backup or slow-draining disposal lines up with when this started.
Common causes
Each cause below can produce Not Draining on a dishwasher, and only measurement on the dishwasher itself will tell you which one you actually have.
- Clogged filter assembly at the bottom of the tub — food debris trapped in the filter restricts water from reaching the drain pump.
- Blocked garbage disposal knockout plug — on a new disposal installation, an uncleared knockout plug can completely block the dishwasher’s drain path.
- Kinked or pinched drain hose — a bent hose behind the unit restricts flow even with a healthy pump.
- Partial clog in the disposal or air gap — buildup downstream of the dishwasher slows draining without fully stopping it.
- Worn drain pump — a pump nearing failure can drain slowly rather than failing outright.
Troubleshooting steps you can try
Each check below is one an owner can make on a dishwasher without tools, and each rules something out about Not Draining before a technician is called to the dishwasher.
- Remove and clean the filter assembly at the bottom of the tub, since this is the most common cause of slow or partial draining.
- If a garbage disposal was recently installed, confirm its dishwasher-connection knockout plug has been removed.
- Run the disposal briefly to clear any debris in the shared drain path.
- Check behind the dishwasher, if accessible, for a kinked or pinched drain hose.
- Bail out any remaining standing water before running another cycle, to avoid compounding the issue.
Parts a technician may replace
The parts most often in question on a dishwasher here are the drain pump, drain hose, air gap or garbage disposal connection, and filter assembly. Which one has actually failed on your Dacor dishwasher is settled by measurement, and nothing is ordered for the dishwasher before that.
When to call a technician
If the filter, disposal knockout, and hose all check out clear and water still stands after each cycle, the drain pump likely needs technician testing or replacement. There is no urgency at Medium severity, yet a dishwasher that repeats Not Draining after these checks deserves a technician’s eyes. Independent service on a Dacor dishwasher means genuine OEM or trusted-supplier parts and a 30-day warranty on our workmanship.
Related help and Dacor resources
Once the Not Draining condition has outlasted the owner-level checks, the dishwasher is a service call: book one, or read the other dishwasher problem pages. www.dacor.com holds the dishwasher data sheet.