Bosch No power to control electronics

Bosch oven display is completely dead (no lights, no response)

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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 breaker or blown fuse, Loose connection at terminal block, Failed line filter, Faulty main control board power supply

How to Fix / Troubleshooting

Safety first: Verify the breaker is off before opening any panels.

  • Check supply: Confirm the wall breaker is on and not tripped. Test the outlet or junction box for correct voltage.
  • Inspect terminal block: Remove the rear cover and check the power connections for tightness and signs of burning.
  • Internal fuse: Some Bosch control boards have an internal fuse. With power off, inspect and replace with the exact type if blown.
  • Control board: If power is present at the board but the display is dead, the main control board is likely faulty and must be replaced.
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Repair Difficulty

Hard 4/5

Required Part

Main Control Board
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