With dacor dishwasher two eras explained side by side, this appliance type offers the single cleanest confirmation on the entire site that Legacy Dacor and Samsung-era Dacor are genuinely different control architectures, not the same platform with a new badge.
The Legacy EDW/IDW platform
Legacy Dacor dishwashers built on the EDW/IDW platform run on a water-presence-sensor, or WPS, architecture — a conductivity-based sensing system that confirms water is actually present, or actually absent, at key points in the wash cycle rather than relying purely on fixed timers. This platform’s error codes run F-1 through F-9, each tied to a specific stage: fill, circulation, heating, drain, airflow, the Floor Guard leak system, EEPROM integrity, board communication, and the WPS sensor itself.
The Samsung-era Modernist platform
Current Modernist dishwashers, such as the DDW24T999BB, run an entirely different code family: LC, 4C, 5C, HC, 3C, PC, and AP. The clearest evidence of the platform change is not just the different-looking codes — it is that the dishwasher’s own internal manual filename is literally structured as a Samsung part number, and that two of its codes, 4C and 5C, are exact string matches to Samsung’s own published dishwasher codes.
Why the two code families never overlap
A Legacy code is always a dash-separated F-number; a Samsung-era code is always a single digit or letter followed by a “C” suffix. There is no code that appears in both tables, and no meaning carries over between them — F-6 and LC both describe a leak condition, for instance, but they are not the same code, they do not display the same way, and they belong to physically different control boards.
Why AP is worth knowing about specifically
AP on the Samsung-era platform is not a problem at all — it is a smartphone or app-pairing prompt, and treating it as an error is a common but harmless misunderstanding, worth clearing up before assuming anything is actually wrong with the machine.
Why identifying the era first is the whole point
Reading either code family against the wrong table sends a diagnosis in a completely unproductive direction, since the two platforms do not share parts, control logic, or a single error-code string. Confirming which code format is on the display is the single fastest way to know which of the two eras, and which repair path, actually applies.
Where to learn more
Our dishwasher error codes page lists both full tables side by side, and our dishwasher appliance page covers current and past models. If you are unsure which era your unit belongs to, scheduling a visit with the exact code displayed lets a technician confirm it immediately. Dacor’s own site lists the current Modernist dishwasher lineup.
