Zenith Dishwasher Error Code F16

F16 means the inverter control system did not detect water in the dishwasher tub before the cycle started. As a protective measure, the dishwasher will not allow the heating element to turn on when this condition exists. This prevents the heater and pump from running dry and sustaining damage. The fault points to a problem with water supply, a water detection sensor, or associated wiring.

No, you should not attempt to run cycles while F16 is active. The dishwasher has disabled the heating element specifically because it cannot confirm water is present, which means running it could expose the heater and pump to a dry-run condition. Address the underlying fault before resuming normal use.

A reset may temporarily clear the F16 code, but it will return as soon as the dishwasher attempts another cycle if the underlying cause has not been resolved. The inverter performs the water detection check at the start of each cycle, so the fault will reappear any time water is not confirmed present. A permanent fix requires diagnosing and correcting the root cause.

Some causes of F16 are DIY-friendly, such as checking that the water supply valve is fully open, inspecting the inlet valve screen for debris, or reseating loose wiring connectors. If the float switch, pressure sensor, or inlet valve itself needs to be replaced, a technically confident DIYer can often handle these repairs. Inverter board replacement is more complex and may warrant a professional technician.

Repair costs depend on the faulty component. A replacement water inlet valve typically runs between $25 and $80 for the part alone. A float switch or pressure sensor can range from $15 to $60. Inverter board replacement is the most expensive scenario, with parts potentially ranging from $100 to $300 or more. Adding professional labor costs generally increases the total by $75 to $200 depending on your area.