my ge dishwasher gdt665ssnss screen is just flashing 'clean' and it won't start any cycle, what do i do?

Diagnosis

The flashing "Clean" indicator combined with a non-responsive control panel on the GE GDT665SSNSS typically indicates that the unit has entered "Control Lock" mode. This is a safety feature designed to prevent children from starting the machine or to stop buttons from being pressed accidentally while wiping down the top control surface. When active, the dishwasher ignores all start commands and cycle selections, effectively freezing the interface. You can confirm this is the issue if the display is otherwise powered on but the "Start" button does not engage the door latch or initiate the drain pump. In some instances, this occurs because the capacitive touch sensors on the GDT665SSNSS are highly sensitive; simply leaning against the control panel or using a damp cloth to clean the top of the door can trigger the 3-second hold requirement for the lock mechanism, engaging the lockout without the user realizing it.

How to Fix It

To deactivate the Control Lock and regain access to your wash cycles, follow these precise steps:

1. Locate the "Control Lock" button on the top control panel. On the GDT665SSNSS, this is typically marked with a padlock icon and is positioned toward the right side of the interface.
2. Ensure your finger is clean and dry, as oil or moisture can interfere with the capacitive touch sensor.
3. Press and hold the "Control Lock" button firmly for exactly three full seconds. Do not pulse the button; maintain steady pressure.
4. Watch the display carefully. The flashing "Clean" light or the "Lock" indicator will vanish, and the panel will beep once to signify that the lockout has been disabled.
5. Press the "Start" button and close the door firmly to ensure the door switch is engaged, then verify that the cycle begins.

If That Didn't Work

• Perform a Hard Power Reset. If the control board has glitched, the lock may be "stuck" in software. Locate your home's electrical breaker panel and flip the circuit breaker labeled "Dishwasher" to the OFF position. Leave it off for a minimum of five full minutes to allow the capacitors on the main control board to fully discharge. Flip the breaker back to ON and attempt the Control Lock sequence again.
• Check for a Stuck Button. Inspect the Control Lock and Start buttons for any physical debris, sticky residue, or buildup around the edges of the panel. If a button is physically depressed or "stuck" in the active position due to a spill, the board will register a constant press and prevent other commands from executing. Use a toothpick and a small amount of isopropyl alcohol to clear any residue from the seams of the buttons.
• Inspect the Door Latch Assembly. If the "Clean" light is flashing but the lock is off, the dishwasher may not recognize that the door is fully closed. Inspect the door latch for any food debris or a bent strike plate. If the latch isn't fully engaging the switch, the unit will refuse to start any cycle as a safety precaution, which can sometimes be misinterpreted as a control lock.
• Test for a Faulty Control Panel Overlay. If you press and hold the button and nothing happens, the capacitive touch film may have delaminated or failed. Try pressing the button with a slightly different part of your finger or a damp (not wet) cloth to see if the sensor responds to a different conductivity level.

Heads Up

• Avoid using abrasive scrubbing pads or harsh chemical cleaners on the top control panel, as these can scratch the plastic overlay and damage the touch sensors, leading to ghost presses or permanent lockouts.
• Always ensure the door is pushed firmly shut; the GDT665SSNSS requires a tight seal to engage the start sequence, and a slightly ajar door can cause the panel to behave erratically.
• If you notice the "Clean" light flashing occasionally even when not locked, it may be a reminder that the rinse aid is low or the filter needs cleaning, though this usually doesn't prevent the machine from starting.
• Regularly clean the filter at the bottom of the tub to prevent back-pressure issues that can occasionally trigger electronic errors on the main control board.