A correct dacor dishwasher wont drain diagnosis starts with the code format on the display, because a Samsung-era Modernist dishwasher and a Legacy EDW/IDW unit describe an identical drain complaint with two completely unrelated codes.
On a Samsung-era unit: 5C
5C is documented as a drain check, run through a detergent test cycle as part of the unit’s self-diagnostic process on the DDW24T999BB and related Modernist dishwashers. Before assuming a failed drain pump, check the drain hose for a kink at the point it connects to the disposal or drain line, and confirm the air gap or high loop, if the installation uses one, is not blocked with old debris.
On a Legacy EDW/IDW unit: F-4
F-4 on the water-presence-sensor architecture behind the EDW/IDW platform means the controller still detects conductivity — water present — in the sump after the drain cycle has completed, which points toward either a genuinely blocked drain path or a WPS sensor reading incorrectly even after the water has actually cleared. Distinguishing between these two possibilities is exactly why checking the physical drain path first, before assuming a sensor failure, saves an unnecessary sensor replacement.
What both platforms have in common
Regardless of era, a slow or partially blocked drain line, a disposal that has never been run to clear its own knockout plug during installation, or food debris caught in the filter basket at the bottom of the tub are the most common physical causes behind a drain complaint, and all three are worth checking before assuming a pump or sensor has failed.
Why matching the code to the era matters
Reading 5C against a Legacy troubleshooting table, or F-4 against a Samsung-era one, leads nowhere useful, since the two code families were built for entirely different control architectures that never share a single string. Confirming the code format first — a dash-separated F-number versus a letter-suffix code — tells you immediately which platform, and which drain-problem meaning, actually applies.
When to book service
A drain complaint that persists after clearing the filter basket, checking the hose for kinks, and confirming the air gap or high loop is clear is worth an experienced technician’s attention, since the remaining causes involve the drain pump or, on a Legacy unit, the WPS sensor itself. Our dishwasher error codes page lists both the Samsung-era and Legacy tables side by side, and our dishwasher appliance page covers the current lineup. Schedule a visit with the exact code noted. We are an independent service with no tie to Dacor or Samsung, and our labor carries a 30-day warranty. Dacor’s own site lists current dishwasher installation requirements.
