Samsung Control Board Backup Power Failure

Clock and settings reset every time power is cycled; range loses memory.

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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

Defective control board memory, Internal capacitor failure, Power interruptions from loose wiring, Faulty main PCB

How to Fix / Troubleshooting

Safety first: Turn OFF power before inspecting wiring.

Power stability:

  • Verify the range is on a dedicated circuit and that the breaker is not loose.
  • Check the terminal block for tight connections and no signs of arcing.

If house power is stable: The main PCB's memory/backup circuit is likely failing. The only reliable fix is to replace the main PCB, which should be done by a technician.

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Repair Difficulty

Hard 4/5

Required Part

Main PCB (Oven Control Board)
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