Common CCTV Faults & Causes
Cameras showing 'no video' usually a damaged Cat5/Cat6 cable, failed PoE port, or end-of-life camera. NVR not recording full hard drive, failed hard drive, lost network link, or wiped configuration. Image flickering or rolling failing power supply, ground-loop interference, or end-of-life sensor in the camera itself. Remote viewing broken ISP router replacement (very common), changed broadband account, or app permissions reset. Night-time footage gone dark failed IR LEDs (typically after 5–8 years of continuous use).
Hard Drive Failure & Data Recovery
CCTV hard drives work harder than any other consumer drive recording 24/7 for years on end. Premium 'surveillance-grade' drives (WD Purple, Seagate SkyHawk) typically last 4–6 years; consumer-grade drives often fail at 18–24 months. Where a drive has failed mid-incident we'll attempt recovery before replacement. Where preventative replacement is sensible (drive showing SMART warnings) we'll recommend it before catastrophic failure.
Replacing Failed Cameras
Most professional cameras last 7–10 years before image degradation, IR failure or weather damage forces replacement. We can swap individual cameras one-for-one (where the existing brand is still available) or upgrade groups of cameras to current technology. Where you have an old analogue HD-TVI system we can often replace cameras and the recorder gradually rather than ripping everything out at once.
Restoring Remote Viewing
Remote app access is the single most common 'broken' issue we attend. The cause is usually that the customer's broadband provider changed their router, reset port forwarding, or switched ISP entirely wiping the network configuration the CCTV needs. We rebuild the configuration, set up dynamic DNS where needed, and document the setup so it survives the next router change.
Cable Faults & Re-cabling
Outdoor CCTV cabling fails over time from UV exposure, rodent damage, building work and water ingress. Where a single cable has failed we replace the run. Where multiple runs are tired we'll quote re-cabling the whole site typically the right call for systems older than 10 years that are otherwise sound.
Upgrade Path Advice
If your existing system uses analogue HD-TVI cameras and a DVR, we can usually move you to a hybrid recorder that takes both old and new cameras letting you upgrade gradually. If your system uses true IP cameras, we can usually swap individual cameras to higher-resolution or AcuSense models without replacing the NVR.
