Princess Display Backlight / Power Supply Degradation

Display is very dim or flickering, but the unit still operates.

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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

Aging LEDs in display module, Weak low-voltage supply on main PCB, Loose display connector, Heat damage to UI board

How to Fix / Troubleshooting

Safety first: Disconnect power before accessing internal electronics.

Steps to improve display:

  • Check ambient light: Confirm that the dimness is not just due to bright ambient light.
  • Inspect connectors: Remove the front panel and reseat the connector between the display module and the main/UI PCB.
  • Examine PCB: Look for heat discoloration or swollen capacitors in the low-voltage section of the main control PCB.
  • Replace module: If the display remains dim or flickers, replace the display / UI assembly or the main control PCB depending on which contains the backlight driver in your Princess model.
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Repair Difficulty

Medium 3/5

Required Part

Display / User Interface Assembly
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