On this page
01. Quick checks you can do first02. What usually causes it03. When to call a technician04. Parts that fix it05. FAQ
Quick answer
'Video loss' means the DVR isn't receiving a picture from that camera. The cause is almost always power to the camera, a loose or corroded BNC connector, a damaged cable, or a dead camera. Swap the camera to a working channel to see if the fault follows the camera or stays with the cable.
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Shop all CCTV parts →Key takeaways
- Video loss = no picture reaching the recorder.
- Power supply faults are the most common cause.
- Corroded BNC and DC connectors fail outdoors.
- Swapping channels isolates camera vs cable.
- Several cameras at once points to the power supply.
01Quick checks you can do first
- 01Check how many channelsSeveral cameras together usually means a shared power supply has failed.
- 02Check the IR at nightIf the camera's infrared LEDs don't glow, it has no power.
- 03Swap channelsPlug the faulty camera into a working channel at the DVR.
- 04Inspect connectorsLook for rusted or loose BNC and DC plugs, especially outdoors.
- 05Check the cable routeRats, renovations and gates often damage cables.
ImportantSwitch off and isolate power before opening any equipment. Batteries, inverters and mains wiring can cause serious injury; leave internal work to a qualified technician.
02What usually causes it
| Symptom | Likely cause | Fix |
|---|---|---|
| Several channels lost | Power supply failed | Replace PSU |
| One channel, IR off | No power to camera | Check DC plug and cable |
| Fault follows camera | Camera failed | Replace camera |
| Fault stays on cable | Damaged cable or connector | Re-terminate or re-run cable |
| Flickering video | Loose connector, interference | New connectors, separate from mains |
03When to call a technician
- Several cameras are down.
- Cables need re-running.
- You need footage for an incident right now.
- Cameras are high up or on poles.
When to call a professionalQyvea technicians diagnose and fix this on site across Nairobi and Kenya. Call 0113 301 244 or WhatsApp a technician.
Running this across several sites or branches? A Qyvea maintenance contract catches these faults on scheduled visits, with a written report after each one.
04Parts that fix it
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Shop all CCTV parts →05Frequently asked questions
Why do several cameras lose video at the same time?
They usually share one power supply. When it fails, they all go.
Can rain cause video loss?
Yes. Water in connectors corrodes them. Use weatherproof boxes and proper sealing.
Do you repair systems another company installed?
Yes, we diagnose and repair any brand.
