De Dietrich No Power / Power Supply Failure

Refrigerator does not start at all; display is off and there are no sounds.

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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 main PCB, Faulty mains power cord, Defective on/off switch or control panel, Tripped household circuit breaker or faulty outlet

How to Fix / Troubleshooting

Safety first: Before opening any panels, unplug the refrigerator and verify the outlet is de-energized.

Steps:

  • 1. Check the outlet: Plug in another appliance to confirm the socket has power. Reset any tripped breakers or RCDs.
  • 2. Inspect the power cord: Look for cuts, burns, or crushed sections. Replace the cord if damaged.
  • 3. Try the power button: Some De Dietrich models have a soft power button on the control panel. Press and hold for several seconds to turn on.
  • 4. Access the main PCB: Remove the rear cover and inspect the board for a blown fuse or burnt components. Replace the fuse only with the same type and rating, and only if you can identify and correct the cause.
  • 5. If the new fuse blows immediately or the board is visibly damaged: The PCB must be replaced by a technician.
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Repair Difficulty

Medium 3/5

Required Part

Main Control Board (PCB)
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