E12
Candy
Internal Power Supply or 5V/12V Rail Fault
Induction cooktop shows E12 and may shut down when multiple zones are used
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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 low-voltage power supply on main board, Shorted component on control PCB, Overload on auxiliary circuits
How to Fix / Troubleshooting
Safety first: Only qualified personnel should troubleshoot internal power supplies. Always disconnect mains first.
- Basic reset: Turn off power for several minutes and test again. If E12 reappears under load, internal supply is likely unstable.
- Visual inspection: Remove the base cover and inspect the main board for bulged capacitors, burnt resistors, or damaged regulators.
- Disconnect peripherals: Temporarily disconnect non-essential harnesses (e.g., extra UI LEDs, auxiliary boards) and see if the error changes. This can help identify a shorted peripheral.
- Replace main board: In most domestic repairs, the practical solution is to replace the main power/control module rather than repair at component level.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Power Module
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