Xiaomi Timer / MCU Clock Inaccuracy

Time remaining on the display does not count down correctly; programs finish too early or too late.

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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

Firmware bug affecting timing, Failing crystal oscillator on MCU, Power interruptions during cooking

How to Fix / Troubleshooting

Safety first: Unplug before internal inspection.

  • Check for power dips: Ensure the cooker is on a stable power circuit without frequent outages.
  • Firmware update: Update the cooker firmware via the Xiaomi Home app if available to correct timing issues.
  • Factory reset: Reset the cooker to factory settings to clear any corrupted program data.
  • Board replacement: If timing remains inaccurate, the MCU clock or crystal may be faulty; replace the main control PCB.
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Repair Difficulty

Hard 4/5

Required Part

Main Control PCB (MCU / Crystal Oscillator)
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