With the advancement of technology and the demand for intelligent management, IC card prepaid pure water meters have been widely used in various fields as an important tool for modern water resource management. However, during long-term use, IC card prepaid pure water meters may also experience some common malfunctions. This article will summarize these common faults and provide corresponding maintenance methods to ensure the normal operation of water meters and extend their service life.
1、 Common faults and cause analysis
1. IC card cannot recognize or read
Symptom descriptionAfter inserting the IC card into the water meter, the meter cannot recognize or read the information on the card, resulting in the inability to recharge or use water normally.
Root cause analysis：
IC card damage or magnetic stripe failure.
The card insertion port is dirty or has poor contact.
The internal card reader of the water meter is malfunctioning.
2. The display screen does not show or displays abnormally
Symptom descriptionThe water meter display screen has no display, displays garbled text, or displays incomplete information.
Root cause analysis：
Low battery level or battery failure.
The display screen is damaged or the connecting wires are loose.
Internal circuit failure of water meter.
3. The water meter valve cannot be opened and closed normally
Symptom descriptionThe water meter valve cannot be opened or closed normally, resulting in the inability to supply water normally or water stoppage.
Root cause analysis：
Internal mechanical failure of the valve, such as jamming or damage.
Abnormal water pressure causes the valve to malfunction.
Control system malfunction, unable to send correct on/off valve commands.
4. Inaccurate water meter measurement
Symptom descriptionThe water volume measured by the water meter does not match the actual water consumption of the user.
Root cause analysis：
The internal sensor of the water meter is damaged or aged.
Water quality issues can cause sensor blockage or corrosion.
Improper installation position of water meter or presence of foreign objects in the pipeline.
2、 Maintenance methods
1. Maintenance of IC cards that cannot be recognized or read
Check IC cardFirstly, check if the IC card is damaged or if the magnetic stripe is invalid. You can try using other normal IC cards for testing.
Clean the plug-in portUse a clean soft cloth or cotton swab to clean the insertion port, ensuring that there are no dust, dirt, or other impurities.
Replace the water meterIf it is confirmed that the internal card reader of the water meter is faulty, it is necessary to contact the manufacturer or professional maintenance personnel for replacement.
2. Maintenance of non display or abnormal display on the screen
Replace the batteryFirstly, check if the battery level is sufficient. If it is insufficient, replace it with a new battery in a timely manner.
Check the display screen and connecting wiresGently press the display screen and check if the connecting wires are loose or damaged. If necessary, unplug or replace them.
Contact maintenance personnelIf the above methods are ineffective, it may be a fault in the internal circuit of the water meter, and it is necessary to contact the manufacturer or professional maintenance personnel for handling.
3. Maintenance of water meter valves that cannot be opened and closed normally
Check the water pressureConfirm whether the water pressure is within the normal range. If there is any abnormality, adjust the water pressure or contact the water supply department.
Clean the valveAfter turning off the water source, gently disassemble the valve and clean the internal impurities to ensure that the mechanical components of the valve are not stuck.
Replace valves or control systemsIf the valve is severely damaged or the control system malfunctions, it is necessary to replace the valve with a new one or contact the manufacturer to repair the control system.
4. Maintenance of inaccurate water meter measurement
Check the sensorRegularly inspect the internal sensors of the water meter for damage or aging, and replace them with new sensors if necessary.
Clean up water qualityEnsure clean water quality and avoid clogging or corrosion of sensors by impurities in the water.
Adjust installation positionCheck if the installation position of the water meter is appropriate to avoid foreign objects in the pipeline affecting the accuracy of measurement.
3、 Summary
As an important tool for modern water resource management, IC card prepaid pure water meters have significant importance in ensuring water supply safety and improving management efficiency through their normal operation. Regular maintenance and upkeep of water meters, timely detection and handling of common faults, can ensure the long-term stable operation of water meters and extend their service life. I hope the common faults and maintenance methods provided in this article can be helpful to everyone.