E09
Sub-Zero Internal Power Supply / Low-Voltage Rail Fault

Induction cooktop displays E09 and will not power on after a power outage or surge.

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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 control board, Failed low-voltage power supply circuit, Surge damage to main control

How to Fix / Troubleshooting

Safety first: Disconnect power at the breaker. Internal components may still hold charge; wait several minutes before touching any circuitry.

Steps:

  • External checks: Confirm the household breaker is not tripped and that correct voltage is present at the junction box or outlet.
  • Inspect internal fuse: Remove the cooktop and access the main control/power module. Look for any onboard fuses (glass or ceramic). Test continuity with a multimeter. Replace only with the same type and rating if blown.
  • Check for surge damage: Inspect the control board for burned components, cracked ICs, or charred areas. Surge damage usually requires full board replacement.
  • Board replacement: If the fuse blows again immediately or if there is visible damage, replace the main control/power module with the correct OEM part.

Warning: Repeated fuse replacement without addressing the underlying fault can cause further damage. If you suspect a surge event, consider installing a whole-house or dedicated surge protector.

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Repair Difficulty

Professional Required 5/5

Required Part

Main Control / Power Module
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