GE Dishwasher Error Code F15

F15 on a GE dishwasher signals that the control board detected absent or undetectable water flow based on input from the turbidity sensor. The turbidity sensor monitors water presence and clarity inside the tub, and if it reports no activity during a fill or wash phase, the F15 fault is triggered. The root cause may be a genuine lack of water entering the unit or a failure in the sensor or its wiring circuit.

You should not attempt to run a wash cycle while F15 is active. The fault indicates that water flow is not being confirmed, which means the dishwasher may not be filling or circulating water correctly. Running the machine in this state could result in incomplete cleaning, potential overheating of the pump, or failure to rinse dishes properly.

Repair costs depend on the failed component. A replacement turbidity sensor typically ranges from roughly 20 to 60 dollars for the part, while a water inlet valve generally falls in the 25 to 75 dollar range. If professional labor is required, total repair costs including diagnosis and installation can range from 100 to 250 dollars or more depending on your location and the specific fault found.

Some causes of F15 are accessible to a knowledgeable DIYer. Inspecting the turbidity sensor harness for loose connections, checking the supply line for kinks, and cleaning a fouled sensor are all tasks that do not require specialized tools. Replacing the inlet valve or turbidity sensor involves some disassembly but is manageable with basic appliance repair experience. If the control board is suspected, professional diagnosis is recommended.

A reset may temporarily clear the F15 code, but it will return at the next cycle if the underlying problem is not corrected. To reset, disconnect power to the dishwasher for one to two minutes and restore it. If the fault reappears immediately or during the next run, a full diagnosis of the turbidity sensor, harness, and water supply is necessary.