Beurer Display Backlight / LED Control Fault

Beurer humidifier's night mode or display dimming does not work.

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

Firmware glitch, Failed LED driver on PCB, Damaged display cable

Safety: Unplug before opening the housing.

Steps:

Reset settings: Turn the unit off, unplug for 5 minutes, then restore power and re-enable night mode.
Check user manual: Confirm the correct button sequence for night mode; some models require a long press.
Inspect display cable: Open the housing and check the cable between the display and main PCB. Reseat if loose.

If the backlight remains permanently on or off despite correct settings, the LED driver or display board may need replacement.

Medium 3/5

Display / LED Board

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