Dacor Dishwasher Error Code F-1

F-1 is an inlet valve fault code. It means the dishwasher completed a fill cycle but the Water Presence Sensor did not detect conductivity in the sump, indicating that water may not have entered the tub. The controller shuts down the cycle and displays F-1 to flag a failure in the water intake system. The inlet valve, water supply, sensor, or related wiring are the areas to investigate.

You should not attempt to run the dishwasher while F-1 is active. The code indicates the machine could not confirm water entered the tub, and running a wash cycle without water could damage the pump, heating element, and other internal components. Resolve the fault before resuming normal use.

A power reset may temporarily clear the F-1 code, but if the underlying fault is still present, the error will return as soon as the dishwasher attempts another fill cycle. A reset is useful as a first step to rule out a transient glitch, but it does not repair a failed valve, faulty sensor, or wiring problem. Persistent F-1 errors require component-level diagnosis.

Some causes of F-1 are DIY-friendly. Start by confirming the water supply shutoff valve is fully open and checking the inlet valve screen for sediment buildup, which can be cleaned without special tools. Inspecting and reseating wiring connectors is also within reach for a confident DIYer. Replacing the inlet valve, WPS, or control board requires basic appliance repair skills and comfort working with electrical components.

Repair costs vary depending on the faulty component. A replacement inlet valve typically runs in the range of $30 to $80 for the part, while a Water Presence Sensor can range from $20 to $60. Professional labor adds to those figures and can range from $100 to $200 or more depending on your market. A control board replacement is the most expensive scenario and can push total repair costs significantly higher.