The card doesn't ring before buying electricity.

1. Check whether the remaining power of the smart meter is zero or reaches the set lower limit. If the remaining power of the smart meter is zero or has reached the set lower limit, the user's power supply may be cut off and the trip indicator light will always be on. Solution: In this case, please buy electricity in time. When the purchased electricity fee is allocated to smart meters, just try to turn on the switch, or some meters can send electricity by themselves;

2. If the remaining amount of the electric meter is greater than zero, the tripping indicator light is still on, and the switch is still closed after tripping. Please don't handle it without authorization. Solution: First, contact the property electrician to check the indoor short circuit fault point, or call the electric power service hotline 95598, and the service personnel of the power supply company will assist in handling related faults;

3. Debugging and upgrading the service billing background of the power supply company may also lead to the situation that the trip indicator light is always on, but it does not often appear. Solution: In this case, just call the electric power service hotline 95598 for maintenance and wait for treatment.