GE Appliances documents H20 as a low-water or no-water condition during the fill phase, so first checks stay with accessible supply and leveling conditions.
GE Dishwasher H2O; United States. This page is not a brand-wide diagnosis.
The dishwasher may show H2O or H20, fail to fill, or stop during the water-fill phase.
Stop if water leaks, supply access is unsafe, or the code returns after accessible checks.
Record model label, water valve position, recent plumbing work, cycle selected, and whether H2O/H20 returned.
This symptom page is attached to GE Dishwasher H2O. It is not a brand-wide diagnosis.
GE Appliances documents H20 as not enough water or no water entering the dishwasher and lists water valve, pressure, recent plumbing or shutoff changes, leveling, and cycle-option clearing checks.