Comenda No Power / Dead Appliance

Dishwasher will not start; no lights or display when power button is pressed.

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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

Blown main fuse or tripped breaker, Faulty power switch, Loose mains connection block, Defective main control board

How to Fix / Troubleshooting

Safety first: Only qualified persons should work on live electrical circuits. Disconnect power before opening panels.

  • Check supply: Verify that the circuit breaker or fuse feeding the dishwasher has not tripped. Reset or replace if necessary.
  • Inspect mains cable: Check the power cord and plug (if fitted) for damage.
  • Terminal block: Open the electrical connection box and ensure all phase and neutral wires are tight.
  • Test power switch: Use a multimeter to confirm that the on/off switch passes voltage when turned on. Replace if faulty.
  • Control board: If supply is present but the display remains off, the main PCB may be defective and require replacement.
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Repair Difficulty

Hard 4/5

Required Part

Main Power Switch
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