Dacor DDW24M999UM Dishwasher Repair

The DDW24M999UM is a 24″ Dacor dishwasher. The code entries for Modernist and Heritage 24-inch dishwashers apply to the same group, so the codes can be discussed in general. Here is what they mean and what to check.

About the unit

A 24-inch dishwasher. We leave out finish, rack and control details. For the sibling model see the DDW24T998US page, and for the lineup the dishwasher guide.

Checks codes this family shows

Records for the Modernist and Heritage 24-inch dishwashers include these. 3C is a pump operation check. 4C is a water supply check. 5C is a drain check. HC is a high temperature heating check. LC is a leakage check where a leak was detected. PC is a zone wash function check. AP is a smartphone-connection mode message, not a fault. All are collected on the dishwasher error codes page.

What owners notice

• A short letter pair on the display and a stalled cycle.
• Water standing at the bottom.
• No fill, or a very slow one.
• Water on the floor after a cycle.
• Dishes cool and damp at the end.

Related guides: not draining, not filling, leaking.

Install factors

As a built-in, the DDW24M999UM connects to a supply valve, a drain hose and a power feed behind its lower panel. A drain hose without a proper loop, a partly closed valve or a kinked line produce 4C or 5C style behavior without any parts failing. An LC code is a reason to look for moisture under the unit, because a small leak at a connection and a worn door seal look the same from above. Panel-ready fronts add door weight that the springs must carry.

Safe checks

1. Look at the breaker and the water valve.
2. Clean the filter and drain screen.
3. Make sure the door seals and the gasket is clean.
4. Write down the code and try one controlled reset at the breaker.

Do not remove lower panels. Stop using the unit if water reaches the floor.

Label and next step

Look on the door edge or tub frame for the label; see the model number guide. Quote DDW24M999UM when you request Dacor dishwasher repair. We diagnose, write the estimate and wait for your approval.

Frequently asked questions