Jenn-Air Dishwasher Error Code 9-3

Code 9-3 means the control board detected that the diverter disk in the sump is missing or not in its expected position. The diverter disk is a round component that directs water to the upper and lower spray zones. Without it, the dishwasher cannot distribute water correctly and will not complete a wash cycle.

No. With a 9-3 code active, the dishwasher will not distribute water properly because the diverter disk is missing from the sump. Running the unit without the disk will result in poor or no cleaning performance and could stress the pump and spray system. Resolve the diverter disk issue before running any cycles.

The diverter disk sits in the sump at the bottom of the dishwasher tub. To access it, you need to remove the lower spray arm, turbo zone assembly, rear feed tube, and outlet cover. Once those components are out of the way, the round diverter disk will be visible in the sump cavity. Check that it is present, undamaged, and properly seated in its position.

Start by removing the lower spray arm, turbo zone assembly, rear feed tube, and outlet cover to access the sump area. Verify the round diverter disk is present and seated correctly. If it is simply dislodged, reseat it and reassemble the components. If the disk is cracked, broken, or missing entirely, order a replacement diverter disk for your specific Jenn-Air model number and install it before running another cycle.

If the diverter disk only needs to be reseated, the repair costs nothing beyond your time. If the disk is lost or damaged and needs replacement, the part typically costs between $15 and $40 depending on the model. This is a DIY-friendly repair once you access the sump by removing the lower spray arm and turbo zone assembly. If disassembly reveals additional damage to the diverter motor or sump components, professional service may be needed, which can add $100 to $200 in labor.