Why does my CCTV camera go black at night?

The usual causes are the camera failing to switch properly into night mode, poor power under night-time load, IR reflection, dirty covers, spider webs, incorrect exposure settings or a model that needs visible light rather than true IR.

Can poor power make a camera fail only at night?

Yes. Some cameras draw more power when IR or white light turns on, so a weak power supply or marginal PoE path can fail only after dark.

Can a dirty dome cause a black or hazy night image?

Yes. Dirt, moisture, fingerprints, spider webs and IR reflecting back into the lens can ruin the night image even when daytime looks acceptable.

What if the camera is full-colour rather than IR?

Then the camera may rely on ambient light or white light rather than infrared, so the support path is different from a traditional IR camera.

Should I change image settings first?

Not first. Prove the model type, physical condition and power path before chasing exposure or day-night settings.

Support

CCTV Camera Has No Image at Night

If a CCTV camera looks fine by day and then goes black, blank or unusable at night, the problem is usually one of four things: the wrong night mode, poor power when the lights switch on, heavy reflection into the lens, or a camera type that needs more ambient light than the site actually has.

CCTV Networking Support

Summary

Use this guide when a camera loses its picture or becomes effectively useless after dark.

Applies to

IP cameras and coax cameras
IR, white-light and full-colour cameras
NVR and DVR systems with day-night issues

Difficulty and time

Difficulty: Moderate

Estimated time: 15 to 30 minutes per camera

What you will need

Local live view after dark
Access to the camera or recorder settings
Knowledge of how the camera is powered
A torch for close inspection if needed

What this guide covers

How to tell what type of night camera you are dealing with
Physical issues that ruin night images
Power problems that only appear after dark
Settings worth checking after the physical path is proven

The mistake we see a lot is jumping straight into menu settings when the camera front is covered in dust, the dome is reflecting IR badly, or the PoE path is falling over as soon as the night LEDs switch on.

In simple terms, prove the hardware path first. After that, the software settings make more sense.

Before you start

Test the camera at night, not only from a daytime screenshot.
Work out whether the model uses IR, white light or full-colour low-light mode.
Check whether the issue affects one camera or several cameras on the same power path.
If PoE is involved, note what switch or NVR port the camera is using.

Important

A black night image is often a power or reflection problem

If the image dies only when the night LEDs come on, think about power draw and lens reflection early.

Those two causes explain a lot more support jobs than obscure menu settings do.

What usually causes this

The camera never switches properly into the correct night mode.
IR or white light turns on and the power path becomes unstable.
Dirty or wet covers reflect the night light back into the lens.
Spider webs sit directly in front of the LEDs and bloom the image.
The camera is a full-colour model that still needs usable scene light.

Step 1: Confirm what type of camera and night mode you have

Start by identifying whether this is a true IR camera, a white-light deterrence camera, or a full-colour low-light camera. Those behave differently at night and should not all be troubleshot the same way.

If it has visible red glow or invisible IR LEDs, it is likely a traditional night-vision path.
If it uses visible white light, check whether that light is turning on as expected.
If it is marketed as full-colour, confirm the site still provides enough ambient light at night.
Do not assume every colour-at-night camera has normal IR.

Step 2: Inspect the front of the camera closely

Night image problems often come from things you can see physically once you look at the camera head properly.

Check for dust, fingerprints, condensation and water marks on the front glass or dome.
Look for spider webs or insects around the lens and light source.
On dome cameras, check whether the dome is scratched or cloudy.
On turrets and bullets, check whether the sunshield or mounting angle is causing strange reflection.

Step 3: Check the power path under night-time load

A camera can be completely fine by day and still fail after dark if the power margin is poor. This is especially common on long PoE runs, weak power supplies and overloaded switches.

If the issue affects several cameras, suspect shared power or PoE budget first.
If it affects one camera on a long cable, test it with a short patch lead closer to the switch if possible.
If the camera reboots or drops in and out when night light turns on, treat power as a likely cause.
Do not ignore a cheap or non-standard power source on older installs.

Step 4: Only then review the day-night and exposure settings

Once the hardware path is proven, the image settings become worth checking.

Check day-night mode and whether it is set to Auto, Colour or B/W in a way that suits the model.
Review supplement light settings for IR or white light.
Check exposure and any over-aggressive manual settings that may be choking the night image.
Test one change at a time and keep a before-and-after screenshot.

Worked example

Turret camera fine by day, blank at night

Situation: A driveway turret camera looked normal in daylight but went black or restarted after dark.

Solution used: The installer tested the camera on a shorter known-good PoE path and found the original run was marginal once the night light load kicked in.

Why this was chosen: The timing of the fault matched the extra night-time power draw.

Installation notes: This is why night faults should always be tested at night, not inferred from daytime behaviour.

Common mistakes

Changing exposure settings before checking dirt, webs or moisture.
Assuming a full-colour camera should behave like an IR camera in total darkness.
Ignoring power issues because the camera looks fine by day.
Testing only in the app and not on local live view.

Troubleshooting table

Symptom	What to check	What to do next
Image goes black after dark	Night mode, power path, reboot behaviour	Check whether the camera drops when night LEDs or light activate.
Image is white, hazy or blooms badly	Dirty cover, moisture, spider webs, IR reflection	Clean and inspect the camera front before changing settings.
Full-colour camera looks poor in darkness	Ambient light and model type	Confirm whether the site actually provides enough light for that camera style.
Several cameras fail at night	Shared power supply or PoE budget	Treat it as a system power problem, not only a single camera issue.

When to contact support

Contact SecurityWholesalers support with your order number, camera model, power path details and a clear description of what happens after dark. Night screenshots and a note about whether the issue affects one camera or several are especially helpful.

Related support guides

Tech Support Guides - Main support hub.
CCTV Networking Support - CCTV networking and camera troubleshooting hub.
CCTV Camera Has No Infrared or Night Vision - Use this if the main question is whether the camera even has traditional IR.
PoE Camera Not Working: Troubleshooting Checklist - Useful if the fault looks power-related.

Related buying guides

Security Camera Placement Guide - Useful if the angle or scene design is the real issue.
CCTV Buying Guide Australia - Broader CCTV system guidance.

Relevant product categories

CCTV Products - Cameras, recorders and accessories.

Still stuck?

Need help choosing or setting up a system? Contact SecurityWholesalers support with your order number, product model and a clear description of the issue.