Samsung No Power to Control / Dead Control Panel

Oven display is dead; no lights or response, but power is present at the outlet.

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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 internal fuse on PCB, Open thermal fuse, Loose power connections at terminal block, Failed main PCB power supply

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker before opening any panels.

  • Verify outlet/junction power:
    • Have an electrician confirm correct voltage at the oven supply.
  • Inspect terminal block:
    • Check for loose or burnt wires where power enters the oven.
  • Check internal fuses:
    • Locate any line fuses or thermal fuses on the wiring harness or PCB and test for continuity.
    • Replace blown fuses only after identifying and correcting the cause.
  • PCB replacement: If fuses and wiring are good, the main PCB power supply may have failed and the board must be replaced.
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Repair Difficulty

Hard 4/5

Required Part

Main Relay Control Board
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