Princess Display Module or Low-Voltage Supply Fault

Microwave display is dim, flickering, or completely blank, but the unit may still heat when started by known button sequences.

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.

Possible Causes

Failed display backlight or VFD, Weak low-voltage supply on PCB, Loose display connector, Faulty display driver IC

Safety: Unplug before any inspection.

Power reset: Unplug for 5–10 minutes, then plug back in to see if the display recovers.
Check for dimming only during load: If the display dims only when cooking, the power supply may be overloaded or failing.
Service: A technician can test the low-voltage rails and replace the display module or main PCB as needed.

Hard 4/5

Display Module

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