Sub-Zero
No Power to Control / Dead Control Panel
Oven display is blank or dead; oven does not respond at all.
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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 in house panel, Loose connections at junction box, Failed line filter or power board, Defective main control board
How to Fix / Troubleshooting
Safety: High voltage is present at the junction box. If you are not trained, use a professional electrician.
- Check breaker: Verify that the oven circuit breaker is not tripped. Reset if necessary.
- Inspect junction box: With power off, remove the cover and check for loose or burned connections. Tighten and repair as needed.
- Verify voltage: Have a qualified person confirm that correct voltage is present at the oven junction box.
- Access control area: Remove the control panel or top cover to inspect the line filter/power board and main control. Look for burned components or blown fuses (if present on the board).
- Replace failed boards: Replace any visibly damaged power or control boards with the correct Sub-Zero parts.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board
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