Zenith Dishwasher Error Code F15

F15 on a Zenith dishwasher means the main control board has received a fault signal from the inverter module. The inverter controls the wash motor speed and power, and when it detects an internal error it reports this condition to the control board. The dishwasher stops operation to prevent damage to the drive system. The fault can stem from the inverter itself, the wash motor, wiring issues, or supply voltage problems.

No, it is not advisable to continue running the dishwasher while F15 is active. The error indicates a fault in the motor drive system, and operating the appliance in this condition could cause further damage to the inverter, wash motor, or control board. Keep the dishwasher off until the fault has been properly diagnosed and resolved.

Repair costs vary depending on the root cause. If the fix involves reseating a connector or addressing a wiring issue, labor costs alone may range from roughly $75 to $150. If the inverter module requires replacement, total parts and labor costs can range from approximately $150 to $400 or more depending on parts availability and local labor rates. A wash motor replacement, if that is the source of the inverter fault, can add to this cost.

Some causes of F15 are DIY-accessible, such as checking and reseating wiring connectors between the inverter and control board or confirming the supply voltage at the wall outlet is stable and correct. However, if the inverter module itself has failed internally, replacing it requires comfort working with dishwasher electronics and safely discharging stored voltage in the inverter circuit. If you are unsure, a qualified appliance technician should perform the diagnosis and repair.

A power reset may temporarily clear the F15 code if the fault was caused by a transient event such as a brief voltage spike or a one-time overheating episode. However, if the underlying cause is an internal inverter failure, a damaged wash motor, or a wiring fault, the error will return quickly once the dishwasher attempts to run the wash cycle again. A persistent F15 that returns after reset indicates a hardware problem that must be repaired.