Answer:
1. Interference problems
The IC card gas meter is weak in anti-interference ability, especially in the harsh environment, such as humidity, high temperature, oil smoke, steam and other corrosive places, resulting in IC card read failure when inserted.
2. Battery problems
If the battery power supply is unstable, the battery power is low, or the battery contact is poor. It is easy to cause the valve to shut off for no reason, resulting in the user not being able to use gas normally even after purchasing gas.
3. Valve problems
A valve is a key component that controls the meter, however, the valve's internal leakage, failure, and high power consumption can easily cause the meter malfunction and make it unable to work properly.
4. Card slot problems
The card slot is the interface part between IC card and gas meter, which is responsible for transferring the information in IC card (user information and gas quantity, etc.) to the gas meter. Some card slots have poor contact with IC card, which leads to failure or error in information transfer and prevents normal gas consumption. On the other hand, the card slot of IC card meter is completely open. If the card slot is damaged by external force, it is very easy to cause the control system to fail and prevent gas consumption.
5. Multi-application card problems
One IC card corresponds to one gas meter and cannot be used interchangeably with other meters and cards. Cards and meters damaged due to man-made reasons cannot be used.