How to Fix / Troubleshooting

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

Steps:

Dry the panel: If the panel was recently wiped or exposed to moisture, allow it to dry completely for several hours (unplugged).
Check for stuck buttons: Press each button several times to ensure it moves freely and returns to its normal position.
Open control housing: Remove screws securing the control panel. Carefully lift it to expose the keypad PCB and ribbon cable.
Inspect ribbon cable: Ensure the cable is not torn or kinked and that it is fully seated in its connector.
Clean contacts: If accessible, gently clean the ribbon contacts with isopropyl alcohol and let dry.
Replace keypad: If E9 persists and certain buttons do not respond, replace the control panel / keypad assembly with a Sunbeam-compatible part.

Dehumidifier displays E9 and controls are unresponsive or erratic

Possible Causes