Symptoms
- Screen goes black or very dark once the room lights are off
- Image is extremely grainy or shows only faint outlines at night
- Night vision works sometimes but not consistently
- A visible glow or glare appears on part of the screen at night
Likely causes
- CommonNight vision mode not enabled or set to auto but room isn't dark enoughSome monitors need full darkness to trigger infrared mode, and dim (but not dark) rooms can confuse the sensor.
- CommonCamera lens or infrared LEDs blocked or dirtyDust, a fingerprint, or something covering part of the lens can block infrared light needed for night vision.
- PossibleCamera placed behind glass or a mesh crib linerInfrared light reflects strongly off glass and some fabrics, washing out the image or causing glare.
- PossibleCamera too far from the crib for the infrared rangeInfrared illumination has a limited range, often shorter than daytime camera range.
- Less commonFailed infrared LEDsThe small infrared LEDs around the lens can fail even though the regular camera still works in daylight.
What to do
- Check the monitor's settings menu for a night vision or IR mode setting and make sure it's set to on or auto.
- Clean the camera lens gently with a soft, dry cloth to remove dust or fingerprints.
- Move the camera so it isn't shooting through glass, a mesh liner, or plastic, which cause infrared glare.
- Reposition the camera closer to the crib if the room is large, since infrared range is limited compared to daylight range.
- Turn off any small nightlights or LED indicators in the direct line of the camera, since some can confuse the light sensor that triggers night mode.
- Look closely at the ring of small LEDs around the lens (usually visible as tiny dark dots) to check if they light up faintly red when the room is dark.
- If the LEDs don't appear to activate at all in a fully dark room, the infrared hardware itself has likely failed.
Tools and parts
- Soft, dry cloth
None typically; camera unitSearch: “baby monitor replacement camera unit”
When to call a pro
If the infrared LEDs don't light up at all after these checks, contact the manufacturer; a failed IR component isn't user-repairable and likely needs a replacement camera unit.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.