Dishwasher completely dead, no lights or response

Symptoms

• No lights, display, or sound of any kind
• Pressing any button produces no reaction
• Other kitchen outlets and appliances work fine
• Problem started suddenly with no warning

Likely causes

• CommonTripped circuit breakerThis is the single most common cause of a completely dead appliance.
• CommonDishwasher unplugged or disconnected junction boxSome dishwashers are hardwired at a junction box behind the unit that can come loose.
• PossibleBlown thermal fuse inside the unitA safety fuse can blow and cut all power to the control board.
• PossibleFailed control boardIf power is confirmed reaching the unit, the board itself may have failed.
• Less commonFaulty door switch preventing any power flowOn some models, a failed door switch can appear to kill all power to the panel.

What to do

1. Check the breaker panel for a tripped breaker labeled for the kitchen or dishwasher and reset it fully.
2. If accessible, check that the unit is actually plugged in or that a hardwired connection hasn't come loose.
3. Test the outlet (if plugged in) with another small appliance to confirm power is present.
4. Check that the door is fully closed, since some models won't show any panel activity with the door open.
5. If breaker and outlet check out fine, the issue is likely internal (fuse, board, or door switch) and needs a technician.
6. Avoid repeatedly resetting a tripping breaker; if it trips again, stop and call an electrician or appliance technician.

Tools and parts

• None

When to call a pro

If breaker and power supply check out fine but the unit still shows no life, have an appliance technician test the thermal fuse and control board.

Safety