Samsung No Power / Main Power Supply Failure

Refrigerator not running at all (no lights, no display, no sound).

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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 outlet, Damaged power cord, Failed main PCB power supply section

How to Fix / Troubleshooting

Safety first: Do not attempt internal electrical repairs unless you are qualified.

Step 1 – Check household power:

  • Verify the circuit breaker for the refrigerator outlet is not tripped; reset if necessary.
  • Plug a lamp or small appliance into the same outlet to confirm power.

Step 2 – Inspect power cord:

  • Pull the refrigerator out carefully.
  • Check the Power Cord for cuts, burns, or damage.

Step 3 – Try a different outlet:

  • If possible, plug the refrigerator into a known-good outlet (no extension cords).

Step 4 – Internal diagnosis (technician recommended):

  • If the outlet and cord are good, the Main PCB or internal fuse may have failed.
  • These components should be tested and replaced by a qualified technician.
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Repair Difficulty

Hard 4/5

Required Part

Main PCB (Main Control Board)
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