Why Video Loss with Security Cameras Happens

August 9th, 2019



Surveillance videos are great to have when you want to keep a closer eye on things either at home or at your place of business. So, if those cameras stop working and important footage isn't recorded, then this can turn into a big problem for you. 

You can lose the video on just one camera, or you can lose it on all of your video cameras. When this happens, and there is a loose connection, you might see a black screen with no video. You might even see the video flickering.

Why did the video signal on your surveillance system suddenly go out? We have a few of the more common reasons for this so you can be better prepared.

Not Enough Power

Insufficient power is not the same as what happens during a power outage. When you have insufficient power, it means that there just isn't enough power available to run the cameras, which can result in video loss. 

When this happens, check all your connections. You should then check to be sure that your PoE switch or PoE injector is working properly. Other things to look for is if the cable is too long or if one cable is being used to supply power to too many cameras at once, and finally, damaged, old, or worn out and faulty power cables.

A Power Spike and Interference

A power spike not only can result in black screens, screens with lines, and sudden video loss, but it could also damage the system's circuit boards. This typically happens when the cameras are mounted to a metal or other conductive surface, lightning strikes, or there is an electrical current interference from some nearby electrical equipment.

To avoid this, use power and lightning surge protectors, use an uninterruptible power supply to help with power outages, and use a block of wood if you can't find the right mounting surface for your video cameras.

Signal and Compatibility

If you are experiencing video loss, it may be because your cameras and DVR are not compatible. Also, you will find that some DVR devices simply can't decode older CCTV cameras. For this problem, it is best to consult with a local professional technician and always use the same brand of DVR or NVR as your video cameras.

Hardware Problems

If you have checked the other problems and are still finding a loss of video, you may need to then consider your firmware. Is it old and outdated? It might be time to give your firmware an update. It may also mean that it is time to replace your old worn out cameras with a newer, higher quality system.

Before attempting to update your firmware, it is important that you have a clear understanding of the process and the update because if not, it can actually cause even more problems for you. 

If you need help with your surveillance system or want advice on upgrading, then contact C4 Security today to go over all your available options and get your surveillance system up and running as it should.