Safety: Disconnect power before working on the control panel.

Steps:

1. Clean the panel: Wipe the touch area with a soft, slightly damp cloth to remove any residue that might cause false touches. Dry thoroughly.
2. Power reset: Unplug for 10 minutes, then reconnect and test the keys. If E16 returns, continue.
3. Inspect keypad connection: Remove the control panel and check the ribbon cable or connector from the keypad to the display PCB. Reseat it firmly.
4. Check for physical damage: Look for cracks or delamination of the touch surface. If damaged, the keypad assembly must be replaced.
5. Replace keypad/UI assembly: Install the correct AEG keypad or complete UI assembly. Ensure seals are intact to prevent future moisture ingress.

E16 error, unit may not respond to temperature adjustments, setpoint cannot be changed

Possible Causes