How to do a basic CCTV Camera Installation Safety Check and Quick Fixes

Quick answer (read this first)

• Ensure all CCTV components, including cameras and DVR/NVR, have power.
• Examine all cables for damage, kinks, or loose connections.
• Gently clean camera lenses to improve image clarity.
• Perform a full system restart of your DVR/NVR and cameras.
• Verify network connectivity for IP cameras and NVR.

Safety first

• Always disconnect power to the DVR/NVR before handling any wiring.
• Use insulated tools and wear protective gloves when working near electrical components.
• Never attempt to open or repair the main DVR/NVR unit or camera power supply if you are not qualified.
• Avoid working on live electrical circuits.
• Use a stable ladder if working at heights and have a helper.

Tools you may need

• Screwdriver set (Phillips and flathead)
• Small cleaning cloth or lens wipes
• Flashlight
• Ladder (if cameras are installed high)

Step-by-step

Step 1

1. Check Power Supply: Verify that your DVR/NVR and all individual cameras are receiving power. Look for indicator lights on devices and confirm adapters are firmly plugged into working outlets.

Step 2

2. Inspect All Cables: Visually check power and video cables for any damage, cuts, kinks, or loose connections. Ensure all plugs are securely seated at both the camera and DVR/NVR ends.

Step 3

3. Clean Camera Lenses: Using a soft, dry cloth or lens wipe, gently clean the camera lenses. Remove any dust, dirt, or cobwebs that could be obstructing the view and causing blurry footage.

Step 4

4. Perform a System Restart: Power off your entire CCTV system, including the DVR/NVR and all cameras. Wait for at least 30 seconds, then power them back on sequentially, starting with the DVR/NVR unit.

Step 5

5. Verify Monitor & Network (IP Cameras): Confirm your monitor is correctly connected and displays the video feed. For IP cameras, ensure your internet router is functioning and connected to the NVR.

Step 6

6. Check Viewing Software/App: Open your CCTV viewing application on your smartphone or computer. Confirm that all cameras are accessible and displaying live, clear feeds.

Common mistakes

• Forgetting to check the power supply for each individual camera.
• Overlooking loose cable connections or damaged cables.
• Not cleaning camera lenses regularly, leading to blurry footage.
• Assuming a hardware issue before trying a full system restart.
• Attempting to open electrical components without proper knowledge.

When to call a professional

• If power indicators are off and you’ve confirmed outlets are working.
• Visible damage to main power cables or wiring that requires repair.
• Persistent ‘no signal’ or flickering images after basic troubleshooting.
• The DVR/NVR unit is unresponsive or making unusual noises.
• Any electrical fault that goes beyond simple plug-and-play fixes or feels unsafe.