Written by
Elena Navarro Appliance Repair Content SpecialistPublished September 11, 2026Updated October 20, 2026
Error codeF1 / F-1
ApplianceDishwasher
Quick answer
F1 on older EDW/IDW dishwashers is an inlet valve fault: the controller finds no water in the sump after fill.
Model compatibility: Dacor reuses codes across series and model years, so F1 / F-1 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
F1 is an inlet valve fault: no water is detected in the sump after fill.
F1 on an older Dacor dishwasher
F1, shown as F-1 INLET VALVE, belongs to an older series: the Dacor EDW/IDW 24-inch dishwashers (Epicure and Distinctive).
How the code is raised
After the fill cycle, the controller checks for conductivity, meaning the presence of water, in the sump through the WPS. If no conductive path is found, it signals that the water valve or a related system might have malfunctioned. The manual describes this as a technician’s diagnostic, with no owner steps.
For an older Dacor dishwasher showing F-1 in Los Angeles, call (310) 742-1907 about dishwasher repair. Have the code and the model number ready.
Source: Dacor EDW/IDW Dishwasher Service Manual, Fault Code/Diagnosis
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Dacor appliance?
Book a specialist visit for a clear estimate and approval before any repair.
