A: The controller will display ERR only when the time chip is abnormal, please unplug it and plug it in again to see if it can work normally.
If it still displays ERR, it means that the product is broken.
A: The controller will display ERR only when the time chip is abnormal, please unplug it and plug it in again to see if it can work normally.
If it still displays ERR, it means that the product is broken.