Xiaomi Voltage Drop / Weak Power Supply

Display and lights flicker or dim when the heater turns on.

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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

Undersized or damaged power cord, Loose neutral or live connection inside cooker, Failing SMPS capacitors on PCB

How to Fix / Troubleshooting

Safety first: Unplug before internal inspection. Avoid using damaged cords.

  • Direct connection: Plug the cooker directly into a wall outlet without extension cords or multi-plugs.
  • Inspect cord: Replace the power cord if it is thin, damaged, or non-original.
  • Internal connection check (advanced): Inspect screw terminals and solder joints on the AC input and neutral bus. Tighten and resolder as needed.
  • Check capacitors: Look for bulging or leaking electrolytic capacitors in the SMPS section. Replace the PCB if capacitors are failing.
  • House wiring: If multiple appliances flicker, consult an electrician to check household wiring and voltage stability.
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Repair Difficulty

Hard 4/5

Required Part

Power Cord, Main Control PCB (SMPS Section)
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