The water meter doesn't show what it is.

1, the battery is dead: in order to save electricity, the water meter generally does not display. After inserting the IC card, you will see the circular display of the water meter, the total purchase amount, the used amount, the remaining amount and so on. If the water meter does not have these functions, the first thing to consider is that the water meter is dead, and it is necessary to replace the battery at the property or water meter manufacturer.

2. The liquid crystal part is broken: if it is not the problem that the water meter has no electricity, it may be that the electronic part of the liquid crystal is broken. Users can carry IC card smart water meters to property or water management departments or water meter manufacturers for maintenance. Can read the mechanical part of water meter.

Judge whether the battery of the water meter needs to be replaced.

1, the electronic display part of the water meter does not display the water meter number, and the water meter gives an alarm sound, indicating that the battery of the water meter is dead at this time and needs to be replaced.

2. When the pre-stored water in the water meter is used up, the water meter has not closed the valve, resulting in water flowing out of the water meter. In this case, the battery of the water meter is dead.

3. When the water meter is found to be inaccurate, it may be that the battery of the water meter is dead, or the IC card smart water meter is broken.

4. Low voltage detection: When the battery voltage is lower than 3.6V, the motor valve is closed and displayed. The valve will close. In this case, you need to install a new battery to reuse the IC card water meter.