Zappi’s front buttons are unresponsive or require excessive force

Safety first: Isolate power before removing the front panel.

• 1. Clean front panel: Wipe the keypad area with a slightly damp cloth to remove dirt or sticky residue, then dry thoroughly.
• 2. Inspect keypad cable: With power off, remove the front cover and check the keypad connector to the PCB. Reseat if loose.
• 3. Check for moisture: Look for signs of water ingress around the keypad. Dry completely and improve sealing if necessary.
• 4. Test each button: With power restored, test each button individually. If some remain dead, the keypad membrane is likely faulty.
• 5. Replace front fascia/keypad: Install a new front panel or keypad assembly as specified by myenergi.