Charger display language or units change unexpectedly, or settings reset without user input.

Safety first: Most steps are software-related; opening the unit requires power OFF.

• 1. Check for power dips: Monitor if resets coincide with storms or other loads turning on/off. Consider adding a UPS or surge protector upstream.
• 2. Update firmware: Install the latest EvoCharge firmware to address known configuration retention issues.
• 3. Replace backup battery (if present): With power OFF, open the unit and replace any coin-cell backup battery on the control board.
• 4. Document settings: Keep a record of your preferred settings so they can be quickly restored after any reset.
• 5. Control board replacement: If settings continue to reset, the NVM on the control board may be failing and require board replacement.

Frequent unexpected resets can also indicate broader power quality issues in the home electrical system.