Display lights up but buttons do not respond or only some functions work.

Safety first: Unplug the unit before removing the control panel.

• Soft reset: Unplug for 10 minutes, then reconnect and test. Sometimes this clears a frozen microcontroller.
• Clean the panel: Wipe the control surface with a slightly damp cloth and mild detergent, then dry. Grease films can affect capacitive touch.
• Check ribbon cable: Remove the fascia and reseat the flat cable between the touch panel and main PCB. Ensure it is straight and fully inserted.
• Inspect for cracks: Look for hairline cracks in the plastic fascia over the touch areas. If present, replace the fascia/touch assembly.
• Replace touch PCB: If specific buttons never work despite good connections, replace the Lakeland touch control panel PCB.

Warning: Do not use solvents or abrasive cleaners on the touch panel; they can permanently damage the sensors.