Dishwasher will not power on at all; no lights or display.

Safety First: Turn off power at the breaker before opening any electrical covers.

• Check household power: Verify the dishwasher's breaker is ON and not tripped. Reset if necessary.
• Test outlet/circuit: If on a plug, test the outlet with another device. For hardwired units, ensure no other loads on the same circuit are affected.
• Inspect junction box (qualified persons only): Remove the toe-kick and junction box cover. Confirm wire nuts are tight and there is no burning or melted insulation.
• Door switch check: Open and close the door firmly; some models will not power the UI if the door switch is not recognized.
• When to call for service: If power is present at the junction box but the dishwasher remains dead, the control board or UI likely needs professional replacement.