GE Dishwasher Error Code F86

F86 means the dishwasher did not detect water entering the tub during the fill phase of a cycle. The control board monitors fill progress and shuts the machine down when no water is sensed within the expected window. This protects the wash pump and heating element from running without water.

No. The dishwasher will not complete a cycle while F86 is active because it has no water in the tub. Running the machine in this state risks damaging the wash pump and heating element, which are designed to operate submerged. Resolve the fill issue before running another cycle.

If the supply line is connected but F86 still appears, the water inlet valve itself is the most likely culprit, either due to a failed solenoid or a clogged filter screen. A stuck float switch is another possibility, where the overfill protection mechanism incorrectly signals the tub is full and blocks the fill cycle. Check and clean the inlet valve screen first, then test the float switch for free movement before replacing the valve.

Start by checking that the water supply valve under the sink is fully open and that the supply line is connected and not kinked. If water supply looks fine, turn off power to the dishwasher, locate the water inlet valve at the bottom front of the unit, and inspect the screen for sediment blockage. If the screen is clear and the valve still does not open, the valve solenoid has likely failed and the valve needs to be replaced. Inlet valves typically cost $20 to $60 for the part.

If the fix is simply opening the supply valve or clearing the inlet valve screen, the repair costs nothing beyond your time. If the water inlet valve needs replacement, parts run roughly $20 to $60 depending on the model. Professional labor to replace an inlet valve typically adds $80 to $150. If the float switch or control board is the cause, parts and labor can push the total to $150 to $300.