Zenith Dishwasher Error Code F22

The F22 code on a Zenith dishwasher means the control system has detected a key on the user interface panel that is stuck in the pressed position. The dishwasher halts operation because a continuously active key signal prevents it from accepting valid user commands. The issue is typically in the keypad membrane, its connections, or the control board's input circuitry.

A reset may temporarily clear the F22 code, but the error will return if the underlying cause is not resolved. To reset, disconnect power to the dishwasher for several minutes, then restore power. If the stuck key condition still exists physically or electronically, the fault will reappear as soon as the control board checks the keypad inputs again.

If the fix requires only cleaning the keypad surface, there is no parts cost. A replacement membrane keypad or touchpad assembly typically costs in the range of $30 to $100 depending on the model. If the control board is the source of the fault, board replacement can range from $80 to $200 or more for parts alone. Adding professional labor generally brings the total repair cost to between $100 and $350 depending on the specific components needed.

In many cases, yes. Start by powering off the dishwasher and carefully cleaning around all buttons on the control panel to remove any moisture or debris that may be holding a key contact closed. If the error persists, the membrane keypad may need to be replaced, which is a repair many experienced DIYers can perform by disconnecting the old panel and connecting a new one. If the keypad appears intact and clean, the issue may be with the ribbon cable connection or the control board, which require more advanced diagnosis.

No, you should not attempt to run the dishwasher while F22 is active. The control board has suspended operation because it cannot reliably interpret user commands with a stuck key present. Running cycles in this state could cause unintended behavior, and the root cause, often moisture intrusion, may indicate a condition that should be addressed before operating the appliance again.