What should I do if I brush the water card and there is no response?

The battery is dead, the water card is not magnetic and so on.

1. The battery is dead: contact the property and ask the plumber to replace the battery. Don't disassemble the water meter without permission.

2, the water card is not magnetic: take the water card to the property service hall and let the customer service read the card in the water sales system. Unable to read the owner information, indicating that the water card is not magnetic and needs to buy a new water card.