Stihl Display Backlight or LCD Degradation

Robot lawnmower display is very dim or unreadable, but the mower still operates.

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

Aged LCD panel, Backlight LED failure, Loose display connector, UV damage from sunlight

Safety first: Turn the mower OFF before opening any covers.

Shade test: Move the mower into a shaded area to confirm whether the display is simply washed out by sunlight.
Check contrast/brightness: If your model allows, adjust display settings in the menu.
Inspect connections: If user-accessible, check that the display ribbon cable is firmly seated on the control board.

If the display remains dim or unreadable, the display module will need replacement by a Stihl service center.

Medium 3/5

Display Module

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