Dacor Range, Oven, Cooktop Error Code F9

On a Dacor Classic 24" dishwasher, F9 specifically indicates a heater failure where the water temperature does not increase during the cycle. The control board expects a measurable temperature rise within a set period, and when that does not occur, it triggers F9 and stops the cycle. The fault points to the heating element, the water pressure switch, or the control board itself.

The dishwasher will generally stop the cycle when F9 appears, so continued operation is unlikely without clearing the fault. Running the unit repeatedly through cycles while the fault is active is not recommended, as dishes will not be sanitized at proper temperatures and underlying electrical faults could worsen over time.

A power reset may temporarily clear the F9 code from the display, but the error will return as soon as the dishwasher runs a cycle and the control board again detects that water temperature is not rising. A reset does not address the underlying component failure, so the fault will persist until the defective part is repaired or replaced.

A knowledgeable DIYer with a multimeter can test the heating element for continuity, which is the first and most likely cause of F9. If the element reads open, replacing it is a straightforward repair. However, if the element tests good and the WPS or control board needs replacement, the job becomes more complex and may be better handled by a qualified technician.

Repair costs vary depending on the failed component. A replacement heating element typically costs between $40 and $120 in parts, while a water pressure switch may range from $30 to $80. A new control board is the most expensive possibility, often ranging from $150 to $400 or more in parts alone. Adding professional labor will increase the total cost.