Ngenic Display / Backlight Degradation

Thermostat backlight or display flickers or shows lines, but the device otherwise functions.

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.

Possible Causes

Aging LCD or OLED panel, Loose display ribbon cable on thermostat PCB, Power supply ripple affecting backlight driver, Physical impact damage to display

How to Fix / Troubleshooting

Safety: Do not open the thermostat casing; this can damage delicate connectors.

Power-cycle: Restart the thermostat and observe if the flicker persists.
Check for physical damage: Inspect the screen for cracks or signs of impact.
Reduce brightness (if available): Lowering backlight brightness may reduce flicker and extend life.

Persistent flickering or lines indicate a failing display or internal connection. The Ngenic thermostat front unit should be replaced.

Repair Difficulty

Medium 3/5

Required Part

Ngenic Thermostat Display/Control Unit

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