Daewoo Voltage Drop / Poor Power Connection

Display flickers or dims when heater turns on; sometimes unit resets.

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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

Loose mains plug or socket, Undersized extension cord, Loose internal terminal block screws, Failing SMPS capacitors on PCB

How to Fix / Troubleshooting

Safety first: Unplug the air fryer before checking internal connections.

Steps:

  • 1. Plug directly into wall: Remove any extension cords or adapters and plug directly into a grounded wall outlet.
  • 2. Inspect plug and outlet: Check for heat discoloration or looseness. Replace damaged outlets or plugs.
  • 3. Tighten internal terminals: Open the rear/bottom cover and tighten screws on the mains terminal block and any push-on connectors feeding the PCB.
  • 4. Check PCB capacitors (advanced): Look for bulging or leaking capacitors in the power supply section. Replace the PCB if components are failing.
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Repair Difficulty

Medium 3/5

Required Part

Main Control PCB
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