Zenith Dishwasher Error Code F23

F23 on a Zenith dishwasher means the appliance has detected a low level of rinse aid in the dispenser reservoir. It is primarily a maintenance reminder to refill the rinse aid compartment. If the code appears right after refilling, a faulty sensor in the dispenser assembly may be the underlying cause.

A reset alone is unlikely to permanently clear F23 because the sensor will continue to detect a low rinse aid level on the next cycle. The correct fix is to refill the rinse aid reservoir first. After refilling, the code should clear automatically once the sensor confirms an adequate level, either immediately or after a wash cycle completes.

If the fix is simply refilling the rinse aid, the cost is minimal, typically in the range of a few dollars for a bottle of rinse aid. If the dispenser sensor or full dispenser assembly needs replacement, parts and labor costs can range from around $50 to $150 depending on the specific component and whether a technician is needed.

Start by opening the rinse aid dispenser cap on the interior of the door and filling the reservoir with standard dishwasher rinse aid until it reaches the full line. Run a complete wash cycle and check whether the code clears. If F23 persists after refilling, the dispenser sensor or assembly may need to be inspected and potentially replaced.

F23 does not indicate a mechanical or electrical hazard, so running the dishwasher is generally safe. However, operating without sufficient rinse aid will result in poor drying performance and water spots on dishes and glassware. It is best to refill the rinse aid before the next wash to maintain cleaning quality.