The reasons for the unresponsiveness of the vast stabilizer when it is turned on include power supply problems, equipment damage and overload of the stabilizer. Vast stabilizer is a kind of electronic equipment, which is usually used to protect electrical equipment from power problems such as current fluctuation and overvoltage. If the vast stabilizer can't start normally, there may be the following reasons:

1. Power supply problem. Loose power cord of the vast stabilizer or poor contact with the plug may lead to no response when starting. At this time, you can try to replace the power plug or power cord and check whether it is in normal contact.

2. the equipment is damaged. If the vast stabilizer equipment is damaged, dropped or collided, it may lead to device damage or circuit break, which may lead to the equipment not working normally. At this time, the equipment needs to be repaired or replaced.

3. The stabilizer is overloaded. If the power of electrical equipment that the stabilizer needs to carry exceeds the peak power it can provide, the equipment may enter the protection mode and fail to work normally. At this time, you can try to reduce the electrical load that the stabilizer needs to carry, or try to change the rated power of the stabilizer. If you can't solve the problem, I suggest you contact the equipment vendor or manufacturer, or seek the help of professional technicians nearby.