LG Studio
No Power to Control / Dead Control Board
Oven control panel is completely dead; no display, no lights, oven does not respond.
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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, loose power cord or terminal block connection, blown internal fuse, failed main PCB
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker before opening any panels.
- Check breaker: Ensure the double-pole breaker is fully ON and not tripped. Reset if necessary.
- Verify outlet/cord: For ranges, confirm the outlet has 240V and the cord is securely connected to the terminal block.
- Inspect terminal block: Remove the rear cover and check for burned or loose connections at the terminal block. Repair or replace as needed.
- Check internal fuse: Some LG Studio ovens have an internal line fuse on the PCB. Test and replace if blown, but also identify and correct the cause.
- If power is present but control is dead: Replace the main control board.
Warning: High voltage is present at the terminal block; only qualified persons should perform live tests.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board (PCB)
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