E07
Daewoo Main PCB / Power Supply Fault

E07 appears and cooker will not start; sometimes after a power surge or lightning storm

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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

Failed low-voltage power supply on main PCB, Shorted triac or relay, Burned PCB track due to surge, Internal microcontroller error

How to Fix / Troubleshooting

Safety first: Unplug the cooker. Do not attempt live-voltage testing unless you are qualified.

  • Power reset: Leave the unit unplugged for at least 10 minutes to allow capacitors to discharge. Plug back in and check if E07 clears.
  • Inspect power cord and plug: Check for burn marks, loose prongs, or damage. Replace the cord if any defects are found.
  • Visual PCB inspection: Remove the bottom cover to access the main PCB. Look for obvious burn marks, bulging capacitors, or cracked solder joints around the power input area.
  • Check connectors: Re-seat all multi-pin connectors from the display board, sensors, and heater to the main PCB.

If E07 persists and there is evidence of board damage, the main control PCB should be replaced. Component-level repair is only recommended for experienced electronics technicians.

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Repair Difficulty

Professional Required 5/5

Required Part

Main Control PCB
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