Gaggenau No Power / Dead Appliance

Dishwasher does not power on at all; no lights or display, no response to buttons.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Tripped circuit breaker, faulty power cord, loose connection at terminal block, defective main control module

How to Fix / Troubleshooting

Safety: Always turn off the circuit breaker before opening any electrical covers.

Steps:

  • Check breaker and outlet: Verify the breaker is not tripped and that the outlet or junction box has correct voltage.
  • Inspect power connection: Remove the toe-kick and open the terminal box. Check that the supply wires are firmly secured and not burned.
  • Check door switch: A failed door switch can sometimes prevent power-up. Test continuity of the door switch when closed.
  • Control module check: If power is present at the control but the display is dead, the control module may be defective and require replacement.
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Repair Difficulty

Hard 4/5

Required Part

Power Module (Main Control Board)
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