1, the business hall gas sales personnel operation error, the transaction failed, failed to sell gas, you can go to the business hall to read the card to confirm, this is easy to find out, if there is gas in the card to exclude this possibility.
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2, the card is not successful, your own operation error led to the IC card failed to effectively contact the gas meter, including contrast card, card insertion is not in place, early withdrawal of the card, etc., but this phenomenon will have an error prompt sound and information or no prompt sound (no IC card detected)
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3. The gas meter card holder is damaged, and the IC card information cannot be read normally.
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4, IC card damage, can go to the business hall to check the IC card.
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5, if the above reasons have been excluded, there is another possibility that the gas is lost, that is, the business hall successfully sold gas, you also successfully inserted the card, but the gas disappeared, this situation is extremely rare
There are two kinds of problems.
One is that the amount of the card is insufficient and cannot be recharged, so it cannot be filled.
Another case is the magnetization of the card, and it is necessary to change the card to the property or gas supply company in the community.