Safety: Unplug the unit before working on the control panel.

Steps:

Dry the panel: If the panel recently got wet (cleaning, spill, high condensation), unplug the unit and let it dry for 24 hours in a warm, dry room.
Inspect buttons: Check for physically stuck buttons. Gently work each button to ensure it moves freely.
Open control panel: Remove screws securing the top/front control bezel. Carefully lift it and inspect the keypad membrane and ribbon cable.
Check cable: Ensure the ribbon cable is fully seated in its connector and not torn or creased sharply.
Clean contacts: If accessible, lightly clean the keypad contact area and connector with isopropyl alcohol and let dry.
Replace keypad or UI board: If E7 persists and some buttons do not respond, replace the keypad membrane or entire user interface board with an Insignia-compatible part.

Tip: Avoid spraying cleaners directly on the control panel; spray onto a cloth instead to prevent future moisture damage.

Dehumidifier shows E7 and will not respond to humidity settings

Possible Causes